21202200021022 has 12 divisors (see below), whose sum is σ = 32862306903408. Its totient is φ = 10259129041500.

The previous prime is 21202200021017. The next prime is 21202200021077. The reversal of 21202200021022 is 22012000220212.

It is a junction number, because it is equal to n+sod(n) for n = 21202200020987 and 21202200021005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5515658854 + ... + 5515662697.

It is an arithmetic number, because the mean of its divisors is an integer number (2738525575284).

Almost surely, 2^{21202200021022} is an apocalyptic number.

21202200021022 is a deficient number, since it is larger than the sum of its proper divisors (11660106882386).

21202200021022 is a wasteful number, since it uses less digits than its factorization.

21202200021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11031321615 (or 11031321584 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21202200021022 its reverse (22012000220212), we get a palindrome (43214200241234).

The spelling of 21202200021022 in words is "twenty-one trillion, two hundred two billion, two hundred million, twenty-one thousand, twenty-two".