222500042 has 16 divisors (see below), whose sum is σ = 341955432. Its totient is φ = 108538560.

The previous prime is 222500041. The next prime is 222500059. The reversal of 222500042 is 240005222.

It can be written as a sum of positive squares in 4 ways, for example, as 188265841 + 34234201 = 13721^2 + 5851^2 .

It is not an unprimeable number, because it can be changed into a prime (222500041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13388 + ... + 24984.

Almost surely, 2^222500042 is an apocalyptic number.

222500042 is a deficient number, since it is larger than the sum of its proper divisors (119455390).

222500042 is a wasteful number, since it uses less digits than its factorization.

222500042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11833.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 222500042 is about 14916.4352980194. The cubic root of 222500042 is about 605.9591751808.

Adding to 222500042 its reverse (240005222), we get a palindrome (462505264).

The spelling of 222500042 in words is "two hundred twenty-two million, five hundred thousand, forty-two".