113201222257 has 2 divisors, whose sum is σ = 113201222258. Its totient is φ = 113201222256.

The previous prime is 113201222213. The next prime is 113201222287. The reversal of 113201222257 is 752222102311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62038853776 + 51162368481 = 249076^2 + 226191^2 .

It is a cyclic number.

It is not a de Polignac number, because 113201222257 - 2¹⁵ = 113201189489 is a prime.

It is not a weakly prime, because it can be changed into another prime (113201222287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56600611128 + 56600611129.

It is an arithmetic number, because the mean of its divisors is an integer number (56600611129).

Almost surely, 2^113201222257 is an apocalyptic number.

It is an amenable number.

113201222257 is a deficient number, since it is larger than the sum of its proper divisors (1).

113201222257 is an equidigital number, since it uses as much as digits as its factorization.

113201222257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 113201222257 its reverse (752222102311), we get a palindrome (865423324568).

The spelling of 113201222257 in words is "one hundred thirteen billion, two hundred one million, two hundred twenty-two thousand, two hundred fifty-seven".