22502252277 has 16 divisors (see below), whose sum is σ = 33666740160. Its totient is φ = 14852970000.

The previous prime is 22502252233. The next prime is 22502252281. The reversal of 22502252277 is 77225220522.

It is not a de Polignac number, because 22502252277 - 2¹⁰ = 22502251253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22502252207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4123099 + ... + 4128552.

It is an arithmetic number, because the mean of its divisors is an integer number (2104171260).

Almost surely, 2^22502252277 is an apocalyptic number.

22502252277 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

22502252277 is a deficient number, since it is larger than the sum of its proper divisors (11164487883).

22502252277 is a wasteful number, since it uses less digits than its factorization.

22502252277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8251761 (or 8251755 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

Adding to 22502252277 its reverse (77225220522), we get a palindrome (99727472799).

The spelling of 22502252277 in words is "twenty-two billion, five hundred two million, two hundred fifty-two thousand, two hundred seventy-seven".