222012750 has 32 divisors (see below), whose sum is σ = 554145696. Its totient is φ = 59203200.

The previous prime is 222012737. The next prime is 222012751. The reversal of 222012750 is 57210222.

It is a happy number.

It is a super-2 number, since 2×222012750² = 98579322325125000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012751) 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, 147259 + ... + 148758.

It is an arithmetic number, because the mean of its divisors is an integer number (17317053).

Almost surely, 2^222012750 is an apocalyptic number.

222012750 is an abundant number, since it is smaller than the sum of its proper divisors (332132946).

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

222012750 is a wasteful number, since it uses less digits than its factorization.

222012750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296037 (or 296027 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 222012750 is about 14900.0922815934. The cubic root of 222012750 is about 605.5164863022.

Adding to 222012750 its reverse (57210222), we get a palindrome (279222972).

The spelling of 222012750 in words is "two hundred twenty-two million, twelve thousand, seven hundred fifty".