22518628801 has 2 divisors, whose sum is σ = 22518628802. Its totient is φ = 22518628800.

The previous prime is 22518628751. The next prime is 22518628831. The reversal of 22518628801 is 10882681522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12187939201 + 10330689600 = 110399^2 + 101640^2 .

It is a cyclic number.

It is not a de Polignac number, because 22518628801 - 2¹⁹ = 22518104513 is a prime.

It is not a weakly prime, because it can be changed into another prime (22518628831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11259314400 + 11259314401.

It is an arithmetic number, because the mean of its divisors is an integer number (11259314401).

Almost surely, 2^22518628801 is an apocalyptic number.

It is an amenable number.

22518628801 is a deficient number, since it is larger than the sum of its proper divisors (1).

22518628801 is an equidigital number, since it uses as much as digits as its factorization.

22518628801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122880, while the sum is 43.

The spelling of 22518628801 in words is "twenty-two billion, five hundred eighteen million, six hundred twenty-eight thousand, eight hundred one".