111145558211 has 2 divisors, whose sum is σ = 111145558212. Its totient is φ = 111145558210.

The previous prime is 111145558201. The next prime is 111145558273. The reversal of 111145558211 is 112855541111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111145558211 is a prime.

It is a super-2 number, since 2×111145558211² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (111145558201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55572779105 + 55572779106.

It is an arithmetic number, because the mean of its divisors is an integer number (55572779106).

Almost surely, 2^111145558211 is an apocalyptic number.

111145558211 is a deficient number, since it is larger than the sum of its proper divisors (1).

111145558211 is an equidigital number, since it uses as much as digits as its factorization.

111145558211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8000, while the sum is 35.

The spelling of 111145558211 in words is "one hundred eleven billion, one hundred forty-five million, five hundred fifty-eight thousand, two hundred eleven".