210212120100 has 72 divisors (see below), whose sum is σ = 621154493568. Its totient is φ = 54863868800.

The previous prime is 210212120089. The next prime is 210212120117. The reversal of 210212120100 is 1021212012.

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

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, 7440231 + ... + 7468430.

It is an arithmetic number, because the mean of its divisors is an integer number (8627145744).

Almost surely, 2^210212120100 is an apocalyptic number.

210212120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210212120100 is an abundant number, since it is smaller than the sum of its proper divisors (410942373468).

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

210212120100 is a wasteful number, since it uses less digits than its factorization.

210212120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14908725 (or 14908718 counting only the distinct ones).

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

Adding to 210212120100 its reverse (1021212012), we get a palindrome (211233332112).

The spelling of 210212120100 in words is "two hundred ten billion, two hundred twelve million, one hundred twenty thousand, one hundred".