21022022313 has 16 divisors (see below), whose sum is σ = 32782881600. Its totient is φ = 13277066400.

The previous prime is 21022022311. The next prime is 21022022321. The reversal of 21022022313 is 31322022012.

21022022313 is a `hidden beast` number, since 210 + 220 + 2 + 231 + 3 = 666.

It is not a de Polignac number, because 21022022313 - 2¹ = 21022022311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21022022311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20488788 + ... + 20489813.

It is an arithmetic number, because the mean of its divisors is an integer number (2048930100).

Almost surely, 2^21022022313 is an apocalyptic number.

It is an amenable number.

21022022313 is a deficient number, since it is larger than the sum of its proper divisors (11760859287).

21022022313 is a wasteful number, since it uses less digits than its factorization.

21022022313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40978629 (or 40978623 counting only the distinct ones).

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

Adding to 21022022313 its reverse (31322022012), we get a palindrome (52344044325).

The spelling of 21022022313 in words is "twenty-one billion, twenty-two million, twenty-two thousand, three hundred thirteen".