222112501 has 16 divisors (see below), whose sum is σ = 248159296. Its totient is φ = 197479296.

The previous prime is 222112487. The next prime is 222112543. The reversal of 222112501 is 105211222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 222112501 - 2²⁷ = 87894773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38086 + ... + 43528.

It is an arithmetic number, because the mean of its divisors is an integer number (15509956).

Almost surely, 2^222112501 is an apocalyptic number.

It is an amenable number.

222112501 is a deficient number, since it is larger than the sum of its proper divisors (26046795).

222112501 is a wasteful number, since it uses less digits than its factorization.

222112501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5572.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 222112501 is about 14903.4392339487. The cubic root of 222112501 is about 605.6071595198.

Adding to 222112501 its reverse (105211222), we get a palindrome (327323723).

The spelling of 222112501 in words is "two hundred twenty-two million, one hundred twelve thousand, five hundred one".