222777222 has 32 divisors (see below), whose sum is σ = 472372224. Its totient is φ = 69919200.

The previous prime is 222777221. The next prime is 222777251.

222777222 is nontrivially palindromic in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222777221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9304 + ... + 23067.

It is an arithmetic number, because the mean of its divisors is an integer number (14761632).

Almost surely, 2^222777222 is an apocalyptic number.

222777222 is an abundant number, since it is smaller than the sum of its proper divisors (249595002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222777222 is a wasteful number, since it uses less digits than its factorization.

222777222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32444.

The product of its digits is 21952, while the sum is 33.

The square root of 222777222 is about 14925.7235000518. The cubic root of 222777222 is about 606.2106958329.

The spelling of 222777222 in words is "two hundred twenty-two million, seven hundred seventy-seven thousand, two hundred twenty-two".