222215113 has 2 divisors, whose sum is σ = 222215114. Its totient is φ = 222215112.

The previous prime is 222215087. The next prime is 222215159. The reversal of 222215113 is 311512222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143928009 + 78287104 = 11997^2 + 8848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222215113 is a prime.

It is not a weakly prime, because it can be changed into another prime (222215813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111107556 + 111107557.

It is an arithmetic number, because the mean of its divisors is an integer number (111107557).

Almost surely, 2^222215113 is an apocalyptic number.

It is an amenable number.

222215113 is a deficient number, since it is larger than the sum of its proper divisors (1).

222215113 is an equidigital number, since it uses as much as digits as its factorization.

222215113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240, while the sum is 19.

The square root of 222215113 is about 14906.8813975291. The cubic root of 222215113 is about 605.7004050514.

Adding to 222215113 its reverse (311512222), we get a palindrome (533727335).

The spelling of 222215113 in words is "two hundred twenty-two million, two hundred fifteen thousand, one hundred thirteen".