210111012120 has 32 divisors (see below), whose sum is σ = 630333036720. Its totient is φ = 56029603200.

The previous prime is 210111012113. The next prime is 210111012161. The reversal of 210111012120 is 21210111012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 210111012096 and 210111012105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875462431 + ... + 875462670.

Almost surely, 2^210111012120 is an apocalyptic number.

210111012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210111012120 is an abundant number, since it is smaller than the sum of its proper divisors (420222024600).

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

210111012120 is a wasteful number, since it uses less digits than its factorization.

210111012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750925115 (or 1750925111 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210111012120 its reverse (21210111012), we get a palindrome (231321123132).

The spelling of 210111012120 in words is "two hundred ten billion, one hundred eleven million, twelve thousand, one hundred twenty".