210101210120 has 32 divisors (see below), whose sum is σ = 472742956800. Its totient is φ = 84037775808.

The previous prime is 210101210117. The next prime is 210101210197. The reversal of 210101210120 is 21012101012.

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, 1572911 + ... + 1701249.

It is an arithmetic number, because the mean of its divisors is an integer number (14773217400).

Almost surely, 2^210101210120 is an apocalyptic number.

210101210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210101210120 is an abundant number, since it is smaller than the sum of its proper divisors (262641746680).

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

210101210120 is a wasteful number, since it uses less digits than its factorization.

210101210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169277 (or 169273 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210101210120 its reverse (21012101012), we get a palindrome (231113311132).

The spelling of 210101210120 in words is "two hundred ten billion, one hundred one million, two hundred ten thousand, one hundred twenty".