111222121139 has 2 divisors, whose sum is σ = 111222121140. Its totient is φ = 111222121138.

The previous prime is 111222121133. The next prime is 111222121147. The reversal of 111222121139 is 931121222111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111222121139 is a prime.

It is not a weakly prime, because it can be changed into another prime (111222121133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611060569 + 55611060570.

It is an arithmetic number, because the mean of its divisors is an integer number (55611060570).

Almost surely, 2^111222121139 is an apocalyptic number.

111222121139 is a deficient number, since it is larger than the sum of its proper divisors (1).

111222121139 is an equidigital number, since it uses as much as digits as its factorization.

111222121139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 26.

The spelling of 111222121139 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred thirty-nine".