210120211121112 has 96 divisors (see below), whose sum is σ = 585553569054480. Its totient is φ = 68038177708800.

The previous prime is 210120211120997. The next prime is 210120211121131. The reversal of 210120211121112 is 211121112021012.

It is a happy number.

210120211121112 is a `hidden beast` number, since 210 + 1 + 20 + 211 + 1 + 211 + 12 = 666.

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

It is a congruent number.

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, 272203438 + ... + 272974269.

Almost surely, 2^{210120211121112} is an apocalyptic number.

It is an amenable number.

210120211121112 is an abundant number, since it is smaller than the sum of its proper divisors (375433357933368).

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

210120211121112 is a wasteful number, since it uses less digits than its factorization.

210120211121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545177873 (or 545177866 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 210120211121112 its reverse (211121112021012), we get a palindrome (421241323142124).

The spelling of 210120211121112 in words is "two hundred ten trillion, one hundred twenty billion, two hundred eleven million, one hundred twenty-one thousand, one hundred twelve".