111005022251009 has 2 divisors, whose sum is σ = 111005022251010. Its totient is φ = 111005022251008.

The previous prime is 111005022250979. The next prime is 111005022251017. The reversal of 111005022251009 is 900152220500111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86892748570384 + 24112273680625 = 9321628^2 + 4910425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111005022251009 is a prime.

It is a super-2 number, since 2×111005022251009² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111005022251309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55502511125504 + 55502511125505.

It is an arithmetic number, because the mean of its divisors is an integer number (55502511125505).

Almost surely, 2^{111005022251009} is an apocalyptic number.

It is an amenable number.

111005022251009 is a deficient number, since it is larger than the sum of its proper divisors (1).

111005022251009 is an equidigital number, since it uses as much as digits as its factorization.

111005022251009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 29.

The spelling of 111005022251009 in words is "one hundred eleven trillion, five billion, twenty-two million, two hundred fifty-one thousand, nine".