21210102001022 has 64 divisors (see below), whose sum is σ = 35414703671040. Its totient is φ = 9525604445280.

The previous prime is 21210102001019. The next prime is 21210102001037. The reversal of 21210102001022 is 22010020101212.

It is a junction number, because it is equal to n+sod(n) for n = 21210102000988 and 21210102001006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107853848 + ... + 108050324.

It is an arithmetic number, because the mean of its divisors is an integer number (553354744860).

Almost surely, 2^{21210102001022} is an apocalyptic number.

21210102001022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21210102001022 is a deficient number, since it is larger than the sum of its proper divisors (14204601670018).

21210102001022 is a wasteful number, since it uses less digits than its factorization.

21210102001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196998 (or 196976 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21210102001022 its reverse (22010020101212), we get a palindrome (43220122102234).

The spelling of 21210102001022 in words is "twenty-one trillion, two hundred ten billion, one hundred two million, one thousand, twenty-two".