21322202022 has 40 divisors (see below), whose sum is σ = 52120942632. Its totient is φ = 6461272800.

The previous prime is 21322201961. The next prime is 21322202053. The reversal of 21322202022 is 22020222312.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21322201986 and 21322202004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5980879 + ... + 5984442.

Almost surely, 2^21322202022 is an apocalyptic number.

21322202022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21322202022 is an abundant number, since it is smaller than the sum of its proper divisors (30798740610).

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

21322202022 is a wasteful number, since it uses less digits than its factorization.

21322202022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11965346 (or 11965337 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 21322202022 its reverse (22020222312), we get a palindrome (43342424334).

The spelling of 21322202022 in words is "twenty-one billion, three hundred twenty-two million, two hundred two thousand, twenty-two".