21022312202 has 16 divisors (see below), whose sum is σ = 33707040192. Its totient is φ = 9808925280.

The previous prime is 21022312187. The next prime is 21022312211. The reversal of 21022312202 is 20221322012.

It is a super-2 number, since 2×21022312202² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5571368 + ... + 5575139.

It is an arithmetic number, because the mean of its divisors is an integer number (2106690012).

Almost surely, 2^21022312202 is an apocalyptic number.

21022312202 is a deficient number, since it is larger than the sum of its proper divisors (12684727990).

21022312202 is a wasteful number, since it uses less digits than its factorization.

21022312202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11146573.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21022312202 its reverse (20221322012), we get a palindrome (41243634214).

The spelling of 21022312202 in words is "twenty-one billion, twenty-two million, three hundred twelve thousand, two hundred two".