210111212112120 has 96 divisors (see below), whose sum is σ = 744939752047920. Its totient is φ = 50936051420160.

The previous prime is 210111212112097. The next prime is 210111212112233. The reversal of 210111212112120 is 21211212111012.

It is a happy number.

210111212112120 is a `hidden beast` number, since 210 + 1 + 1 + 121 + 211 + 2 + 120 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 210111212112093 and 210111212112102.

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, 26529189489 + ... + 26529197408.

Almost surely, 2^{210111212112120} is an apocalyptic number.

210111212112120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210111212112120 is an abundant number, since it is smaller than the sum of its proper divisors (534828539935800).

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

210111212112120 is a wasteful number, since it uses less digits than its factorization.

210111212112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53058386925 (or 53058386918 counting only the distinct ones).

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

Adding to 210111212112120 its reverse (21211212111012), we get a palindrome (231322424223132).

The spelling of 210111212112120 in words is "two hundred ten trillion, one hundred eleven billion, two hundred twelve million, one hundred twelve thousand, one hundred twenty".