222322144 has 24 divisors (see below), whose sum is σ = 477488088. Its totient is φ = 101055360.

The previous prime is 222322129. The next prime is 222322153. The reversal of 222322144 is 441223222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315447 + ... + 316150.

It is an arithmetic number, because the mean of its divisors is an integer number (19895337).

Almost surely, 2^222322144 is an apocalyptic number.

It is an amenable number.

222322144 is an abundant number, since it is smaller than the sum of its proper divisors (255165944).

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

222322144 is a wasteful number, since it uses less digits than its factorization.

222322144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631618 (or 631610 counting only the distinct ones).

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

The square root of 222322144 is about 14910.4709516501. The cubic root of 222322144 is about 605.7976356337.

Adding to 222322144 its reverse (441223222), we get a palindrome (663545366).

The spelling of 222322144 in words is "two hundred twenty-two million, three hundred twenty-two thousand, one hundred forty-four".