222601604 has 24 divisors (see below), whose sum is σ = 418632480. Its totient is φ = 103188096.

The previous prime is 222601597. The next prime is 222601637. The reversal of 222601604 is 406106222.

It is a self number, because there is not a number n which added to its sum of digits gives 222601604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19874 + ... + 28985.

It is an arithmetic number, because the mean of its divisors is an integer number (17443020).

Almost surely, 2^222601604 is an apocalyptic number.

It is an amenable number.

222601604 is a deficient number, since it is larger than the sum of its proper divisors (196030876).

222601604 is a wasteful number, since it uses less digits than its factorization.

222601604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48947 (or 48945 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 222601604 is about 14919.8392752737. The cubic root of 222601604 is about 606.0513595293.

Adding to 222601604 its reverse (406106222), we get a palindrome (628707826).

The spelling of 222601604 in words is "two hundred twenty-two million, six hundred one thousand, six hundred four".