222720320113 has 2 divisors, whose sum is σ = 222720320114. Its totient is φ = 222720320112.

The previous prime is 222720320051. The next prime is 222720320153. The reversal of 222720320113 is 311023027222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212440793569 + 10279526544 = 460913^2 + 101388^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222720320113 is a prime.

It is not a weakly prime, because it can be changed into another prime (222720320153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111360160056 + 111360160057.

It is an arithmetic number, because the mean of its divisors is an integer number (111360160057).

Almost surely, 2^222720320113 is an apocalyptic number.

It is an amenable number.

222720320113 is a deficient number, since it is larger than the sum of its proper divisors (1).

222720320113 is an equidigital number, since it uses as much as digits as its factorization.

222720320113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 222720320113 its reverse (311023027222), we get a palindrome (533743347335).

The spelling of 222720320113 in words is "two hundred twenty-two billion, seven hundred twenty million, three hundred twenty thousand, one hundred thirteen".