222515250 has 32 divisors (see below), whose sum is σ = 555399936. Its totient is φ = 59337200.

The previous prime is 222515201. The next prime is 222515257. The reversal of 222515250 is 52515222.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222515250.

It is not an unprimeable number, because it can be changed into a prime (222515257) 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 in 15 ways as a sum of consecutive naturals, for example, 147594 + ... + 149093.

It is an arithmetic number, because the mean of its divisors is an integer number (17356248).

Almost surely, 2^222515250 is an apocalyptic number.

222515250 is an abundant number, since it is smaller than the sum of its proper divisors (332884686).

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

222515250 is a wasteful number, since it uses less digits than its factorization.

222515250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296707 (or 296697 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 222515250 is about 14916.9450625790. The cubic root of 222515250 is about 605.9729807470.

The spelling of 222515250 in words is "two hundred twenty-two million, five hundred fifteen thousand, two hundred fifty".