222031425 has 48 divisors (see below), whose sum is σ = 457684992. Its totient is φ = 92270400.

The previous prime is 222031417. The next prime is 222031427. The reversal of 222031425 is 524130222.

It is not a de Polignac number, because 222031425 - 2³ = 222031417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (222031427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13449 + ... + 24998.

It is an arithmetic number, because the mean of its divisors is an integer number (9535104).

Almost surely, 2^222031425 is an apocalyptic number.

222031425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222031425 is an abundant number, since it is smaller than the sum of its proper divisors (235653567).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222031425 is a wasteful number, since it uses less digits than its factorization.

222031425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38478 (or 38473 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 222031425 is about 14900.7189423866. The cubic root of 222031425 is about 605.5334638607.

Adding to 222031425 its reverse (524130222), we get a palindrome (746161647).

The spelling of 222031425 in words is "two hundred twenty-two million, thirty-one thousand, four hundred twenty-five".