22772957227 has 2 divisors, whose sum is σ = 22772957228. Its totient is φ = 22772957226.

The previous prime is 22772957219. The next prime is 22772957279. The reversal of 22772957227 is 72275927722.

It is an a-pointer prime, because the next prime (22772957279) can be obtained adding 22772957227 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22772957227 - 2³ = 22772957219 is a prime.

It is a super-4 number, since 4×22772957227⁴ (a number of 43 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (22772957327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11386478613 + 11386478614.

It is an arithmetic number, because the mean of its divisors is an integer number (11386478614).

Almost surely, 2^22772957227 is an apocalyptic number.

22772957227 is a deficient number, since it is larger than the sum of its proper divisors (1).

22772957227 is an equidigital number, since it uses as much as digits as its factorization.

22772957227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3457440, while the sum is 52.

The spelling of 22772957227 in words is "twenty-two billion, seven hundred seventy-two million, nine hundred fifty-seven thousand, two hundred twenty-seven".