111112221127 has 2 divisors, whose sum is σ = 111112221128. Its totient is φ = 111112221126.

The previous prime is 111112221109. The next prime is 111112221173. The reversal of 111112221127 is 721122211111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111112221127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111112221098 and 111112221107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111112221827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556110563 + 55556110564.

It is an arithmetic number, because the mean of its divisors is an integer number (55556110564).

Almost surely, 2^111112221127 is an apocalyptic number.

111112221127 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112221127 is an equidigital number, since it uses as much as digits as its factorization.

111112221127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112, while the sum is 22.

Adding to 111112221127 its reverse (721122211111), we get a palindrome (832234432238).

The spelling of 111112221127 in words is "one hundred eleven billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twenty-seven".