222320145442 has 32 divisors (see below), whose sum is σ = 342356227200. Its totient is φ = 108243451008.

The previous prime is 222320145433. The next prime is 222320145469. The reversal of 222320145442 is 244541023222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7839184 + ... + 7867492.

It is an arithmetic number, because the mean of its divisors is an integer number (10698632100).

Almost surely, 2^222320145442 is an apocalyptic number.

222320145442 is a deficient number, since it is larger than the sum of its proper divisors (120036081758).

222320145442 is a wasteful number, since it uses less digits than its factorization.

222320145442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29050.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 222320145442 its reverse (244541023222), we get a palindrome (466861168664).

The spelling of 222320145442 in words is "two hundred twenty-two billion, three hundred twenty million, one hundred forty-five thousand, four hundred forty-two".