22721374307 has 4 divisors (see below), whose sum is σ = 23008986720. Its totient is φ = 22433761896.

The previous prime is 22721374283. The next prime is 22721374309. The reversal of 22721374307 is 70347312722.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22721374307 - 2⁸ = 22721374051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22721374309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143806088 + ... + 143806245.

It is an arithmetic number, because the mean of its divisors is an integer number (5752246680).

Almost surely, 2^22721374307 is an apocalyptic number.

22721374307 is a deficient number, since it is larger than the sum of its proper divisors (287612413).

22721374307 is an equidigital number, since it uses as much as digits as its factorization.

22721374307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287612412.

The product of its (nonzero) digits is 98784, while the sum is 38.

The spelling of 22721374307 in words is "twenty-two billion, seven hundred twenty-one million, three hundred seventy-four thousand, three hundred seven".