22222525240225 has 24 divisors (see below), whose sum is σ = 28902999946752. Its totient is φ = 16916953574400.

The previous prime is 22222525240219. The next prime is 22222525240291. The reversal of 22222525240225 is 52204252522222.

It is not a de Polignac number, because 22222525240225 - 2¹⁷ = 22222525109153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100013041 + ... + 100234990.

It is an arithmetic number, because the mean of its divisors is an integer number (1204291664448).

Almost surely, 2^{22222525240225} is an apocalyptic number.

22222525240225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22222525240225 is a deficient number, since it is larger than the sum of its proper divisors (6680474706527).

22222525240225 is a wasteful number, since it uses less digits than its factorization.

22222525240225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200248257 (or 200248252 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 37.

Adding to 22222525240225 its reverse (52204252522222), we get a palindrome (74426777762447).

The spelling of 22222525240225 in words is "twenty-two trillion, two hundred twenty-two billion, five hundred twenty-five million, two hundred forty thousand, two hundred twenty-five".