225578122 has 96 divisors (see below), whose sum is σ = 451221120. Its totient is φ = 82684800.

The previous prime is 225578113. The next prime is 225578141. The reversal of 225578122 is 221875522.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3697972 + ... + 3698032.

It is an arithmetic number, because the mean of its divisors is an integer number (4700220).

Almost surely, 2^225578122 is an apocalyptic number.

225578122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

225578122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

225578122 is a wasteful number, since it uses less digits than its factorization.

225578122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 177 counting only the distinct ones).

The product of its digits is 22400, while the sum is 34.

The square root of 225578122 is about 15019.2583705055. The cubic root of 225578122 is about 608.7406806658.

It can be divided in two parts, 225578 and 122, that multiplied together give a square (27520516 = 5246²).

The spelling of 225578122 in words is "two hundred twenty-five million, five hundred seventy-eight thousand, one hundred twenty-two".