222262222 has 16 divisors (see below), whose sum is σ = 410330592. Its totient is φ = 87927840.

The previous prime is 222262217. The next prime is 222262237.

It is a happy number.

222262222 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 222262193 and 222262202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610429 + ... + 610792.

It is an arithmetic number, because the mean of its divisors is an integer number (25645662).

Almost surely, 2^222262222 is an apocalyptic number.

222262222 is a deficient number, since it is larger than the sum of its proper divisors (188068370).

222262222 is a wasteful number, since it uses less digits than its factorization.

222262222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221243.

The product of its digits is 1536, while the sum is 22.

The square root of 222262222 is about 14908.4614229638. The cubic root of 222262222 is about 605.7432043070.

The spelling of 222262222 in words is "two hundred twenty-two million, two hundred sixty-two thousand, two hundred twenty-two".