210120111112 has 96 divisors (see below), whose sum is σ = 423335808000. Its totient is φ = 97747364864.

The previous prime is 210120111109. The next prime is 210120111133. The reversal of 210120111112 is 211111021012.

It is a happy number.

It is a super-2 number, since 2×210120111112² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210120111092 and 210120111101.

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, 78197433 + ... + 78200119.

It is an arithmetic number, because the mean of its divisors is an integer number (4409748000).

Almost surely, 2^210120111112 is an apocalyptic number.

It is an amenable number.

210120111112 is an abundant number, since it is smaller than the sum of its proper divisors (213215696888).

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

210120111112 is a wasteful number, since it uses less digits than its factorization.

210120111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103 (or 3082 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 210120111112 its reverse (211111021012), we get a palindrome (421231132124).

The spelling of 210120111112 in words is "two hundred ten billion, one hundred twenty million, one hundred eleven thousand, one hundred twelve".