22274616225 has 72 divisors (see below), whose sum is σ = 38608778880. Its totient is φ = 11330675840.

The previous prime is 22274616191. The next prime is 22274616227. The reversal of 22274616225 is 52261647222.

It is not a de Polignac number, because 22274616225 - 2¹¹ = 22274614177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22274616227) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 20194024 + ... + 20195126.

It is an arithmetic number, because the mean of its divisors is an integer number (536233040).

Almost surely, 2^22274616225 is an apocalyptic number.

22274616225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22274616225 is a deficient number, since it is larger than the sum of its proper divisors (16334162655).

22274616225 is a wasteful number, since it uses less digits than its factorization.

22274616225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671 (or 1643 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The spelling of 22274616225 in words is "twenty-two billion, two hundred seventy-four million, six hundred sixteen thousand, two hundred twenty-five".