22607320621 has 2 divisors, whose sum is σ = 22607320622. Its totient is φ = 22607320620.

The previous prime is 22607320523. The next prime is 22607320633. The reversal of 22607320621 is 12602370622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22513502025 + 93818596 = 150045^2 + 9686^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22607320621 is a prime.

It is a super-2 number, since 2×22607320621² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22607320721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11303660310 + 11303660311.

It is an arithmetic number, because the mean of its divisors is an integer number (11303660311).

Almost surely, 2^22607320621 is an apocalyptic number.

It is an amenable number.

22607320621 is a deficient number, since it is larger than the sum of its proper divisors (1).

22607320621 is an equidigital number, since it uses as much as digits as its factorization.

22607320621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 22607320621 in words is "twenty-two billion, six hundred seven million, three hundred twenty thousand, six hundred twenty-one".