222250731 has 16 divisors (see below), whose sum is σ = 298767360. Its totient is φ = 146956320.

The previous prime is 222250727. The next prime is 222250793. The reversal of 222250731 is 137052222.

It is a happy number.

It is not a de Polignac number, because 222250731 - 2² = 222250727 is a prime.

It is a super-2 number, since 2×222250731² = 98790774860068722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222250631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302841 + ... + 303573.

It is an arithmetic number, because the mean of its divisors is an integer number (18672960).

Almost surely, 2^222250731 is an apocalyptic number.

222250731 is a deficient number, since it is larger than the sum of its proper divisors (76516629).

222250731 is a wasteful number, since it uses less digits than its factorization.

222250731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 222250731 is about 14908.0760328085. The cubic root of 222250731 is about 605.7327651134.

The spelling of 222250731 in words is "two hundred twenty-two million, two hundred fifty thousand, seven hundred thirty-one".