21313022202 has 24 divisors (see below), whose sum is σ = 46199846784. Its totient is φ = 7101012744.

The previous prime is 21313022191. The next prime is 21313022207. The reversal of 21313022202 is 20222031312.

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

It is not an unprimeable number, because it can be changed into a prime (21313022207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237688 + ... + 314835.

It is an arithmetic number, because the mean of its divisors is an integer number (1924993616).

Almost surely, 2^21313022202 is an apocalyptic number.

21313022202 is an abundant number, since it is smaller than the sum of its proper divisors (24886824582).

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

21313022202 is a wasteful number, since it uses less digits than its factorization.

21313022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554674 (or 554671 counting only the distinct ones).

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

Adding to 21313022202 its reverse (20222031312), we get a palindrome (41535053514).

The spelling of 21313022202 in words is "twenty-one billion, three hundred thirteen million, twenty-two thousand, two hundred two".