222500156 has 12 divisors (see below), whose sum is σ = 389550840. Its totient is φ = 111199920.

The previous prime is 222500149. The next prime is 222500167. The reversal of 222500156 is 651005222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1475 + ... + 21146.

It is an arithmetic number, because the mean of its divisors is an integer number (32462570).

Almost surely, 2^222500156 is an apocalyptic number.

It is an amenable number.

222500156 is a deficient number, since it is larger than the sum of its proper divisors (167050684).

222500156 is a wasteful number, since it uses less digits than its factorization.

222500156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25084 (or 25082 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 222500156 is about 14916.4391193073. The cubic root of 222500156 is about 605.9592786704.

Adding to 222500156 its reverse (651005222), we get a palindrome (873505378).

The spelling of 222500156 in words is "two hundred twenty-two million, five hundred thousand, one hundred fifty-six".