111941139122 has 18 divisors (see below), whose sum is σ = 168636629343. Its totient is φ = 55729966684.

The previous prime is 111941139073. The next prime is 111941139209. The reversal of 111941139122 is 221931149111.

It can be written as a sum of positive squares in only one way, i.e., 55970569561 + 55970569561 = 236581^2 + 236581^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=236581.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 169864829 + ... + 169865487.

Almost surely, 2^111941139122 is an apocalyptic number.

111941139122 is a deficient number, since it is larger than the sum of its proper divisors (56695490221).

111941139122 is an frugal number, since it uses more digits than its factorization.

111941139122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038 (or 1020 counting only the distinct ones).

The product of its digits is 3888, while the sum is 35.

The spelling of 111941139122 in words is "one hundred eleven billion, nine hundred forty-one million, one hundred thirty-nine thousand, one hundred twenty-two".