111102122057 has 2 divisors, whose sum is σ = 111102122058. Its totient is φ = 111102122056.

The previous prime is 111102122011. The next prime is 111102122141. The reversal of 111102122057 is 750221201111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106936194121 + 4165927936 = 327011^2 + 64544^2 .

It is a cyclic number.

It is not a de Polignac number, because 111102122057 - 2³² = 106807154761 is a prime.

It is a super-2 number, since 2×111102122057² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111107122057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55551061028 + 55551061029.

It is an arithmetic number, because the mean of its divisors is an integer number (55551061029).

Almost surely, 2^111102122057 is an apocalyptic number.

It is an amenable number.

111102122057 is a deficient number, since it is larger than the sum of its proper divisors (1).

111102122057 is an equidigital number, since it uses as much as digits as its factorization.

111102122057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 23.

Adding to 111102122057 its reverse (750221201111), we get a palindrome (861323323168).

The spelling of 111102122057 in words is "one hundred eleven billion, one hundred two million, one hundred twenty-two thousand, fifty-seven".