21202000021022 has 24 divisors (see below), whose sum is σ = 32495166419664. Its totient is φ = 10375092460512.

The previous prime is 21202000020973. The next prime is 21202000021039. The reversal of 21202000021022 is 22012000020212.

It is a junction number, because it is equal to n+sod(n) for n = 21202000020988 and 21202000021006.

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, 168558938 + ... + 168684674.

It is an arithmetic number, because the mean of its divisors is an integer number (1353965267486).

Almost surely, 2^{21202000021022} is an apocalyptic number.

21202000021022 is a deficient number, since it is larger than the sum of its proper divisors (11293166398642).

21202000021022 is a wasteful number, since it uses less digits than its factorization.

21202000021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164000 (or 163953 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21202000021022 its reverse (22012000020212), we get a palindrome (43214000041234).

The spelling of 21202000021022 in words is "twenty-one trillion, two hundred two billion, twenty-one thousand, twenty-two".