222154444 has 24 divisors (see below), whose sum is σ = 394175600. Its totient is φ = 109541376.

The previous prime is 222154433. The next prime is 222154489. The reversal of 222154444 is 444451222.

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 7 ways as a sum of consecutive naturals, for example, 129907 + ... + 131605.

Almost surely, 2^222154444 is an apocalyptic number.

It is an amenable number.

222154444 is a deficient number, since it is larger than the sum of its proper divisors (172021156).

222154444 is a wasteful number, since it uses less digits than its factorization.

222154444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137 (or 2135 counting only the distinct ones).

The product of its digits is 10240, while the sum is 28.

The square root of 222154444 is about 14904.8463259438. The cubic root of 222154444 is about 605.6452774139.

It can be divided in two parts, 2221 and 54444, that added together give a palindrome (56665).

The spelling of 222154444 in words is "two hundred twenty-two million, one hundred fifty-four thousand, four hundred forty-four".