222247155 has 32 divisors (see below), whose sum is σ = 396164160. Its totient is φ = 105638400.

The previous prime is 222247147. The next prime is 222247169. The reversal of 222247155 is 551742222.

It is not a de Polignac number, because 222247155 - 2³ = 222247147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13996 + ... + 25305.

It is an arithmetic number, because the mean of its divisors is an integer number (12380130).

Almost surely, 2^222247155 is an apocalyptic number.

222247155 is a deficient number, since it is larger than the sum of its proper divisors (173917005).

222247155 is a wasteful number, since it uses less digits than its factorization.

222247155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39351.

The product of its digits is 11200, while the sum is 30.

The square root of 222247155 is about 14907.9560973327. The cubic root of 222247155 is about 605.7295163622.

Adding to 222247155 its reverse (551742222), we get a palindrome (773989377).

The spelling of 222247155 in words is "two hundred twenty-two million, two hundred forty-seven thousand, one hundred fifty-five".