210100100100102 has 24 divisors (see below), whose sum is σ = 475008921966384. Its totient is φ = 66988437712944.

The previous prime is 210100100099969. The next prime is 210100100100131. The reversal of 210100100100102 is 201001001001012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 253744081833 + ... + 253744082660.

It is an arithmetic number, because the mean of its divisors is an integer number (19792038415266).

Almost surely, 2^{210100100100102} is an apocalyptic number.

210100100100102 is an abundant number, since it is smaller than the sum of its proper divisors (264908821866282).

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

210100100100102 is a wasteful number, since it uses less digits than its factorization.

210100100100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507488164524 (or 507488164521 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 210100100100102 its reverse (201001001001012), we get a palindrome (411101101101114).

The spelling of 210100100100102 in words is "two hundred ten trillion, one hundred billion, one hundred million, one hundred thousand, one hundred two".