222447155 has 16 divisors (see below), whose sum is σ = 321127680. Its totient is φ = 144506592.

The previous prime is 222447119. The next prime is 222447163. The reversal of 222447155 is 551744222.

It is a cyclic number.

It is not a de Polignac number, because 222447155 - 2¹⁰ = 222446131 is a prime.

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, 166589 + ... + 167918.

It is an arithmetic number, because the mean of its divisors is an integer number (20070480).

Almost surely, 2^222447155 is an apocalyptic number.

222447155 is a deficient number, since it is larger than the sum of its proper divisors (98680525).

222447155 is a wasteful number, since it uses less digits than its factorization.

222447155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334538.

The product of its digits is 22400, while the sum is 32.

The square root of 222447155 is about 14914.6624165618. The cubic root of 222447155 is about 605.9111603548.

The spelling of 222447155 in words is "two hundred twenty-two million, four hundred forty-seven thousand, one hundred fifty-five".