22125657227 has 4 divisors (see below), whose sum is σ = 22173035976. Its totient is φ = 22078278480.

The previous prime is 22125657209. The next prime is 22125657241. The reversal of 22125657227 is 72275652122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72275652122 = 2 ⋅36137826061.

It is a cyclic number.

It is not a de Polignac number, because 22125657227 - 2²⁴ = 22108880011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22125653227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23688674 + ... + 23689607.

It is an arithmetic number, because the mean of its divisors is an integer number (5543258994).

Almost surely, 2^22125657227 is an apocalyptic number.

22125657227 is a deficient number, since it is larger than the sum of its proper divisors (47378749).

22125657227 is an equidigital number, since it uses as much as digits as its factorization.

22125657227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47378748.

The product of its digits is 235200, while the sum is 41.

The spelling of 22125657227 in words is "twenty-two billion, one hundred twenty-five million, six hundred fifty-seven thousand, two hundred twenty-seven".