22227256777 has 8 divisors (see below), whose sum is σ = 24448313952. Its totient is φ = 20206595860.

The previous prime is 22227256757. The next prime is 22227256811. The reversal of 22227256777 is 77765272222.

It is not a de Polignac number, because 22227256777 - 2²³ = 22218868169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22227256777.

It is not an unprimeable number, because it can be changed into a prime (22227256717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8348503 + ... + 8351164.

It is an arithmetic number, because the mean of its divisors is an integer number (3056039244).

Almost surely, 2^22227256777 is an apocalyptic number.

It is an amenable number.

22227256777 is a deficient number, since it is larger than the sum of its proper divisors (2221057175).

22227256777 is an equidigital number, since it uses as much as digits as its factorization.

22227256777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16699700 (or 16699678 counting only the distinct ones).

The product of its digits is 2304960, while the sum is 49.

The spelling of 22227256777 in words is "twenty-two billion, two hundred twenty-seven million, two hundred fifty-six thousand, seven hundred seventy-seven".