222431130 has 32 divisors (see below), whose sum is σ = 593150400. Its totient is φ = 59314896.

The previous prime is 222431123. The next prime is 222431159. The reversal of 222431130 is 31134222.

222431130 is a `hidden beast` number, since 222 + 431 + 13 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411640 + ... + 412179.

It is an arithmetic number, because the mean of its divisors is an integer number (18535950).

Almost surely, 2^222431130 is an apocalyptic number.

222431130 is an abundant number, since it is smaller than the sum of its proper divisors (370719270).

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

222431130 is a wasteful number, since it uses less digits than its factorization.

222431130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823835 (or 823829 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 222431130 is about 14914.1251838651. The cubic root of 222431130 is about 605.8966101432.

Adding to 222431130 its reverse (31134222), we get a palindrome (253565352).

The spelling of 222431130 in words is "two hundred twenty-two million, four hundred thirty-one thousand, one hundred thirty".