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202202112220 = 22544924239293
BaseRepresentation
bin1011110001010000101…
…1110110000011011100
3201022220210221120120021
42330110023312003130
511303102220042340
6232520153001524
720415520411153
oct2742413660334
9638823846507
10202202112220
1178831903759
12332310b32a4
13160b5610064
149b0274c59a
1553d695be4a
hex2f142f60dc

202202112220 has 48 divisors (see below), whose sum is σ = 425791598400. Its totient is φ = 80658722816.

The previous prime is 202202112157. The next prime is 202202112253. The reversal of 202202112220 is 22211202202.

202202112220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 202202112194 and 202202112203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21753894 + ... + 21763186.

It is an arithmetic number, because the mean of its divisors is an integer number (8870658300).

Almost surely, 2202202112220 is an apocalyptic number.

202202112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202202112220 is an abundant number, since it is smaller than the sum of its proper divisors (223589486180).

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

202202112220 is a wasteful number, since it uses less digits than its factorization.

202202112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12174 (or 12172 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 202202112220 its reverse (22211202202), we get a palindrome (224413314422).

The spelling of 202202112220 in words is "two hundred two billion, two hundred two million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 449 898 1796 2245 2423 4490 4846 8980 9293 9692 12115 18586 24230 37172 46465 48460 92930 185860 1087927 2175854 4172557 4351708 5439635 8345114 10879270 16690228 20862785 21758540 22516939 41725570 45033878 83451140 90067756 112584695 225169390 450338780 10110105611 20220211222 40440422444 50550528055 101101056110 202202112220