111422120021 has 8 divisors (see below), whose sum is σ = 111898765440. Its totient is φ = 110945562112.

The previous prime is 111422119979. The next prime is 111422120027. The reversal of 111422120021 is 120021224111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111422120021 - 2³⁰ = 110348378197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111422120027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4546226 + ... + 4570668.

It is an arithmetic number, because the mean of its divisors is an integer number (13987345680).

Almost surely, 2^111422120021 is an apocalyptic number.

It is an amenable number.

111422120021 is a deficient number, since it is larger than the sum of its proper divisors (476645419).

111422120021 is a wasteful number, since it uses less digits than its factorization.

111422120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43755.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111422120021 its reverse (120021224111), we get a palindrome (231443344132).

The spelling of 111422120021 in words is "one hundred eleven billion, four hundred twenty-two million, one hundred twenty thousand, twenty-one".