222994724 has 6 divisors (see below), whose sum is σ = 390240774. Its totient is φ = 111497360.

The previous prime is 222994721. The next prime is 222994727. The reversal of 222994724 is 427499222.

It is an interprime number because it is at equal distance from previous prime (222994721) and next prime (222994727).

It can be written as a sum of positive squares in only one way, i.e., 193488100 + 29506624 = 13910^2 + 5432^2 .

It is not an unprimeable number, because it can be changed into a prime (222994721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27874337 + ... + 27874344.

It is an arithmetic number, because the mean of its divisors is an integer number (65040129).

Almost surely, 2^222994724 is an apocalyptic number.

It is an amenable number.

222994724 is a deficient number, since it is larger than the sum of its proper divisors (167246050).

222994724 is a wasteful number, since it uses less digits than its factorization.

222994724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55748685 (or 55748683 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 222994724 is about 14933.0078684771. The cubic root of 222994724 is about 606.4079170013.

The spelling of 222994724 in words is "two hundred twenty-two million, nine hundred ninety-four thousand, seven hundred twenty-four".