22000021313 has 4 divisors (see below), whose sum is σ = 22122926640. Its totient is φ = 21877115988.

The previous prime is 22000021297. The next prime is 22000021331. The reversal of 22000021313 is 31312000022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31312000022 = 2 ⋅15656000011.

It is a cyclic number.

It is not a de Polignac number, because 22000021313 - 2⁴ = 22000021297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22000021333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61452395 + ... + 61452752.

It is an arithmetic number, because the mean of its divisors is an integer number (5530731660).

Almost surely, 2^22000021313 is an apocalyptic number.

It is an amenable number.

22000021313 is a deficient number, since it is larger than the sum of its proper divisors (122905327).

22000021313 is a wasteful number, since it uses less digits than its factorization.

22000021313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122905326.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 22000021313 its reverse (31312000022), we get a palindrome (53312021335).

The spelling of 22000021313 in words is "twenty-two billion, twenty-one thousand, three hundred thirteen".