21210102021022 has 32 divisors (see below), whose sum is σ = 32282392320000. Its totient is φ = 10449484133760.

The previous prime is 21210102021007. The next prime is 21210102021061. The reversal of 21210102021022 is 22012020101212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21210102020987 and 21210102021005.

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, 2645636758 + ... + 2645644774.

It is an arithmetic number, because the mean of its divisors is an integer number (1008824760000).

Almost surely, 2^{21210102021022} is an apocalyptic number.

21210102021022 is a deficient number, since it is larger than the sum of its proper divisors (11072290298978).

21210102021022 is a wasteful number, since it uses less digits than its factorization.

21210102021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16816.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21210102021022 its reverse (22012020101212), we get a palindrome (43222122122234).

The spelling of 21210102021022 in words is "twenty-one trillion, two hundred ten billion, one hundred two million, twenty-one thousand, twenty-two".