222538144 has 12 divisors (see below), whose sum is σ = 438122034. Its totient is φ = 111269056.

The previous prime is 222538139. The next prime is 222538153. The reversal of 222538144 is 441835222.

It can be written as a sum of positive squares in only one way, i.e., 207014544 + 15523600 = 14388^2 + 3940^2 .

It is a super-3 number, since 3×222538144³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3477127 + ... + 3477190.

Almost surely, 2^222538144 is an apocalyptic number.

It is an amenable number.

222538144 is a deficient number, since it is larger than the sum of its proper divisors (215583890).

222538144 is an equidigital number, since it uses as much as digits as its factorization.

222538144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6954327 (or 6954319 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 222538144 is about 14917.7124251676. The cubic root of 222538144 is about 605.9937623483.

The spelling of 222538144 in words is "two hundred twenty-two million, five hundred thirty-eight thousand, one hundred forty-four".