111922084181 has 4 divisors (see below), whose sum is σ = 114524923392. Its totient is φ = 109319244972.

The previous prime is 111922084151. The next prime is 111922084189. The reversal of 111922084181 is 181480229111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111922084181 is a prime.

It is a super-2 number, since 2×111922084181² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111922084189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301419541 + ... + 1301419626.

It is an arithmetic number, because the mean of its divisors is an integer number (28631230848).

Almost surely, 2^111922084181 is an apocalyptic number.

It is an amenable number.

111922084181 is a deficient number, since it is larger than the sum of its proper divisors (2602839211).

111922084181 is an equidigital number, since it uses as much as digits as its factorization.

111922084181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602839210.

The product of its (nonzero) digits is 9216, while the sum is 38.

The spelling of 111922084181 in words is "one hundred eleven billion, nine hundred twenty-two million, eighty-four thousand, one hundred eighty-one".