222270155 has 32 divisors (see below), whose sum is σ = 296110080. Its totient is φ = 159413760.

The previous prime is 222270131. The next prime is 222270161. The reversal of 222270155 is 551072222.

It is not a de Polignac number, because 222270155 - 2¹⁴ = 222253771 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175916 + ... + 177174.

It is an arithmetic number, because the mean of its divisors is an integer number (9253440).

Almost surely, 2^222270155 is an apocalyptic number.

222270155 is a deficient number, since it is larger than the sum of its proper divisors (73839925).

222270155 is a wasteful number, since it uses less digits than its factorization.

222270155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 222270155 is about 14908.7274775549. The cubic root of 222270155 is about 605.7504109653.

The spelling of 222270155 in words is "two hundred twenty-two million, two hundred seventy thousand, one hundred fifty-five".