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220201022011212 = 2232113715028734781
BaseRepresentation
bin110010000100010110001011…
…101100100011011101001100
31001212200000022211110210112200
4302010112023230203131030
5212330233143113324322
62100154541503001500
764244666413261104
oct6204261354433514
91055600284423480
10220201022011212
1164187802329750
1220844524899290
1395b3b37537938
143c53b019a0204
151a6ce01e778ac
hexc8458bb2374c

220201022011212 has 72 divisors (see below), whose sum is σ = 623632378513872. Its totient is φ = 64924134249600.

The previous prime is 220201022011207. The next prime is 220201022011231. The reversal of 220201022011212 is 212110220102022.

It is a happy number.

220201022011212 is a `hidden beast` number, since 2 + 20 + 201 + 0 + 220 + 11 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7514352739 + ... + 7514382042.

Almost surely, 2220201022011212 is an apocalyptic number.

220201022011212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220201022011212 is an abundant number, since it is smaller than the sum of its proper divisors (403431356502660).

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

220201022011212 is a wasteful number, since it uses less digits than its factorization.

220201022011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15028734839 (or 15028734834 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220201022011212 its reverse (212110220102022), we get a palindrome (432311242113234).

The spelling of 220201022011212 in words is "two hundred twenty trillion, two hundred one billion, twenty-two million, eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 37 44 66 74 99 111 132 148 198 222 333 396 407 444 666 814 1221 1332 1628 2442 3663 4884 7326 14652 15028734781 30057469562 45086204343 60114939124 90172408686 135258613029 165316082591 180344817372 270517226058 330632165182 495948247773 541034452116 556063186897 661264330364 991896495546 1112126373794 1487844743319 1668189560691 1983792991092 2224252747588 2975689486638 3336379121382 5004568682073 5951378973276 6116695055867 6672758242764 10009137364146 12233390111734 18350085167601 20018274728292 24466780223468 36700170335202 55050255502803 73400340670404 110100511005606 220201022011212