210012100100 has 72 divisors (see below), whose sum is σ = 497234279136. Its totient is φ = 76356000000.

The previous prime is 210012100091. The next prime is 210012100141. The reversal of 210012100100 is 1001210012.

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, 9989600 + ... + 10010600.

Almost surely, 2^210012100100 is an apocalyptic number.

210012100100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210012100100 is an abundant number, since it is smaller than the sum of its proper divisors (287222179036).

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

210012100100 is a wasteful number, since it uses less digits than its factorization.

210012100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30117 (or 30110 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 210012100100 its reverse (1001210012), we get a palindrome (211013310112).

It can be divided in two parts, 21001 and 2100100, that multiplied together give a square (44104200100 = 210010²).

The spelling of 210012100100 in words is "two hundred ten billion, twelve million, one hundred thousand, one hundred".