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212110102210110 = 235132887245919181
BaseRepresentation
bin110000001110100110111011…
…010010111010011000111110
31000211000112020201102221122120
4300032212323102322120332
5210300202442131210420
62031042011420023410
762451310031556246
oct6016467322723076
91024015221387576
10212110102210110
1161648430aa9225
121b958438091b66
139147b873b4100
143a542801d0b26
15197c70d046d40
hexc0e9bb4ba63e

212110102210110 has 192 divisors, whose sum is σ = 552109914063360. Its totient is φ = 52128927352320.

The previous prime is 212110102210049. The next prime is 212110102210121. The reversal of 212110102210110 is 11012201011212.

It is a happy number.

It is a super-2 number, since 2×2121101022101102 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212110102210110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11058334720 + ... + 11058353900.

It is an arithmetic number, because the mean of its divisors is an integer number (2875572469080).

Almost surely, 2212110102210110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212110102210110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276054957031680).

212110102210110 is an abundant number, since it is smaller than the sum of its proper divisors (339999811853250).

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

212110102210110 is a wasteful number, since it uses less digits than its factorization.

212110102210110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22563 (or 22550 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212110102210110 its reverse (11012201011212), we get a palindrome (223122303221322).

The spelling of 212110102210110 in words is "two hundred twelve trillion, one hundred ten billion, one hundred two million, two hundred ten thousand, one hundred ten".