21313202022 has 48 divisors (see below), whose sum is σ = 55879997472. Its totient is φ = 5731280640.

The previous prime is 21313202017. The next prime is 21313202059. The reversal of 21313202022 is 22020231312.

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 = 21313201986 and 21313202004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4972929 + ... + 4977212.

It is an arithmetic number, because the mean of its divisors is an integer number (1164166614).

Almost surely, 2^21313202022 is an apocalyptic number.

21313202022 is an abundant number, since it is smaller than the sum of its proper divisors (34566795450).

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

21313202022 is a wasteful number, since it uses less digits than its factorization.

21313202022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9950173 (or 9950170 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21313202022 its reverse (22020231312), we get a palindrome (43333433334).

The spelling of 21313202022 in words is "twenty-one billion, three hundred thirteen million, two hundred two thousand, twenty-two".