210021222102 has 32 divisors (see below), whose sum is σ = 437833704192. Its totient is φ = 67098344544.

The previous prime is 210021222097. The next prime is 210021222119. The reversal of 210021222102 is 201222120012.

It is a super-2 number, since 2×210021222102² (a number of 23 digits) contains 22 as substring.

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, 7045138 + ... + 7074885.

It is an arithmetic number, because the mean of its divisors is an integer number (13682303256).

Almost surely, 2^210021222102 is an apocalyptic number.

210021222102 is an abundant number, since it is smaller than the sum of its proper divisors (227812482090).

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

210021222102 is a wasteful number, since it uses less digits than its factorization.

210021222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14120132.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 210021222102 its reverse (201222120012), we get a palindrome (411243342114).

The spelling of 210021222102 in words is "two hundred ten billion, twenty-one million, two hundred twenty-two thousand, one hundred two".