222312231157 has 2 divisors, whose sum is σ = 222312231158. Its totient is φ = 222312231156.

The previous prime is 222312231133. The next prime is 222312231179. The reversal of 222312231157 is 751132213222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183326123556 + 38986107601 = 428166^2 + 197449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222312231157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222312231257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111156115578 + 111156115579.

It is an arithmetic number, because the mean of its divisors is an integer number (111156115579).

Almost surely, 2^222312231157 is an apocalyptic number.

It is an amenable number.

222312231157 is a deficient number, since it is larger than the sum of its proper divisors (1).

222312231157 is an equidigital number, since it uses as much as digits as its factorization.

222312231157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

Adding to 222312231157 its reverse (751132213222), we get a palindrome (973444444379).

The spelling of 222312231157 in words is "two hundred twenty-two billion, three hundred twelve million, two hundred thirty-one thousand, one hundred fifty-seven".