222250140 has 72 divisors (see below), whose sum is σ = 770471520. Its totient is φ = 50799744.

The previous prime is 222250139. The next prime is 222250141. The reversal of 222250140 is 41052222.

It is an interprime number because it is at equal distance from previous prime (222250139) and next prime (222250141).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222250141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86935 + ... + 89454.

Almost surely, 2^222250140 is an apocalyptic number.

222250140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222250140 is an abundant number, since it is smaller than the sum of its proper divisors (548221380).

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

222250140 is a wasteful number, since it uses less digits than its factorization.

222250140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176411 (or 176406 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 222250140 is about 14908.0562113241. The cubic root of 222250140 is about 605.7322281997.

The spelling of 222250140 in words is "two hundred twenty-two million, two hundred fifty thousand, one hundred forty".