22606024921 has 2 divisors, whose sum is σ = 22606024922. Its totient is φ = 22606024920.

The previous prime is 22606024849. The next prime is 22606024937. The reversal of 22606024921 is 12942060622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17061584400 + 5544440521 = 130620^2 + 74461^2 .

It is a cyclic number.

It is not a de Polignac number, because 22606024921 - 2¹³ = 22606016729 is a prime.

It is a super-2 number, since 2×22606024921² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22606024981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11303012460 + 11303012461.

It is an arithmetic number, because the mean of its divisors is an integer number (11303012461).

Almost surely, 2^22606024921 is an apocalyptic number.

It is an amenable number.

22606024921 is a deficient number, since it is larger than the sum of its proper divisors (1).

22606024921 is an equidigital number, since it uses as much as digits as its factorization.

22606024921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 22606024921 in words is "twenty-two billion, six hundred six million, twenty-four thousand, nine hundred twenty-one".