210122100120 has 64 divisors (see below), whose sum is σ = 630573337440. Its totient is φ = 56014156800.

The previous prime is 210122100103. The next prime is 210122100121. The reversal of 210122100120 is 21001221012.

210122100120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 = 210122100096 and 210122100105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122100121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81300 + ... + 653340.

Almost surely, 2^210122100120 is an apocalyptic number.

210122100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210122100120 is an abundant number, since it is smaller than the sum of its proper divisors (420451237320).

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

210122100120 is a wasteful number, since it uses less digits than its factorization.

210122100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575116 (or 575112 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210122100120 its reverse (21001221012), we get a palindrome (231123321132).

The spelling of 210122100120 in words is "two hundred ten billion, one hundred twenty-two million, one hundred thousand, one hundred twenty".