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11212102110220 = 225111925710437047
BaseRepresentation
bin1010001100101000010101…
…0111010000110000001100
31110200212101200012021001021
42203022011113100300030
52432144341120011340
635502434003523524
72235022225315444
oct243120527206014
943625350167037
1011212102110220
1136330313846a0
121310b923895a4
136343b1aa9b9b
142aa950a55124
151469bc31de4a
hexa32855d0c0c

11212102110220 has 96 divisors (see below), whose sum is σ = 27143004510720. Its totient is φ = 3847512637440.

The previous prime is 11212102110203. The next prime is 11212102110241. The reversal of 11212102110220 is 2201120121211.

It is a super-2 number, since 2×112121021102202 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11212102110194 and 11212102110203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4144264 + ... + 6292783.

It is an arithmetic number, because the mean of its divisors is an integer number (282739630320).

Almost surely, 211212102110220 is an apocalyptic number.

11212102110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212102110220 is an abundant number, since it is smaller than the sum of its proper divisors (15930902400500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11212102110220 is a wasteful number, since it uses less digits than its factorization.

11212102110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10437343 (or 10437341 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11212102110220 its reverse (2201120121211), we get a palindrome (13413222231431).

The spelling of 11212102110220 in words is "eleven trillion, two hundred twelve billion, one hundred two million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 19 20 22 38 44 55 76 95 110 190 209 220 257 380 418 514 836 1028 1045 1285 2090 2570 2827 4180 4883 5140 5654 9766 11308 14135 19532 24415 28270 48830 53713 56540 97660 107426 214852 268565 537130 1074260 10437047 20874094 41748188 52185235 104370470 114807517 198303893 208740940 229615034 396607786 459230068 574037585 793215572 991519465 1148075170 1983038930 2181342823 2296150340 2682321079 3966077860 4362685646 5364642158 8725371292 10729284316 10906714115 13411605395 21813428230 26823210790 29505531869 43626856460 50964100501 53646421580 59011063738 101928201002 118022127476 147527659345 203856402004 254820502505 295055318690 509641005010 560605105511 590110637380 1019282010020 1121210211022 2242420422044 2803025527555 5606051055110 11212102110220