225237122156 has 12 divisors (see below), whose sum is σ = 404818071168. Its totient is φ = 109574816112.

The previous prime is 225237122137. The next prime is 225237122171. The reversal of 225237122156 is 651221732522.

It is a super-2 number, since 2×225237122156² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760936076 + ... + 760936371.

It is an arithmetic number, because the mean of its divisors is an integer number (33734839264).

Almost surely, 2^225237122156 is an apocalyptic number.

It is an amenable number.

225237122156 is a deficient number, since it is larger than the sum of its proper divisors (179580949012).

225237122156 is a wasteful number, since it uses less digits than its factorization.

225237122156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521872488 (or 1521872486 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

Adding to 225237122156 its reverse (651221732522), we get a palindrome (876458854678).

The spelling of 225237122156 in words is "two hundred twenty-five billion, two hundred thirty-seven million, one hundred twenty-two thousand, one hundred fifty-six".