210021101010102 has 32 divisors (see below), whose sum is σ = 431399961683712. Its totient is φ = 68114119934304.

The previous prime is 210021101010047. The next prime is 210021101010131. The reversal of 210021101010102 is 201010101120012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12576463 + ... + 24045989.

It is an arithmetic number, because the mean of its divisors is an integer number (13481248802616).

Almost surely, 2^{210021101010102} is an apocalyptic number.

210021101010102 is an abundant number, since it is smaller than the sum of its proper divisors (221378860673610).

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

210021101010102 is a wasteful number, since it uses less digits than its factorization.

210021101010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11552052.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210021101010102 its reverse (201010101120012), we get a palindrome (411031202130114).

The spelling of 210021101010102 in words is "two hundred ten trillion, twenty-one billion, one hundred one million, ten thousand, one hundred two".