111298224881 has 2 divisors, whose sum is σ = 111298224882. Its totient is φ = 111298224880.

The previous prime is 111298224857. The next prime is 111298224899. The reversal of 111298224881 is 188422892111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111099555856 + 198669025 = 333316^2 + 14095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111298224881 is a prime.

It is a super-2 number, since 2×111298224881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111298224581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55649112440 + 55649112441.

It is an arithmetic number, because the mean of its divisors is an integer number (55649112441).

Almost surely, 2^111298224881 is an apocalyptic number.

It is an amenable number.

111298224881 is a deficient number, since it is larger than the sum of its proper divisors (1).

111298224881 is an equidigital number, since it uses as much as digits as its factorization.

111298224881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 47.

The spelling of 111298224881 in words is "one hundred eleven billion, two hundred ninety-eight million, two hundred twenty-four thousand, eight hundred eighty-one".