210000210100 has 36 divisors (see below), whose sum is σ = 456050470624. Its totient is φ = 83935565280.

The previous prime is 210000210029. The next prime is 210000210139. The reversal of 210000210100 is 1012000012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 675534 + ... + 936133.

Almost surely, 2^210000210100 is an apocalyptic number.

210000210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210000210100 is an abundant number, since it is smaller than the sum of its proper divisors (246050260524).

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

210000210100 is a wasteful number, since it uses less digits than its factorization.

210000210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612984 (or 1612977 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 210000210100 its reverse (1012000012), we get a palindrome (211012210112).

The spelling of 210000210100 in words is "two hundred ten billion, two hundred ten thousand, one hundred".