210202112100 has 72 divisors (see below), whose sum is σ = 608321912128. Its totient is φ = 56041257600.

The previous prime is 210202112089. The next prime is 210202112137. The reversal of 210202112100 is 1211202012.

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, 1293390 + ... + 1446810.

Almost surely, 2^210202112100 is an apocalyptic number.

210202112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210202112100 is an abundant number, since it is smaller than the sum of its proper divisors (398119800028).

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

210202112100 is a wasteful number, since it uses less digits than its factorization.

210202112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158005 (or 157998 counting only the distinct ones).

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

Adding to 210202112100 its reverse (1211202012), we get a palindrome (211413314112).

The spelling of 210202112100 in words is "two hundred ten billion, two hundred two million, one hundred twelve thousand, one hundred".