111022020121 has 8 divisors (see below), whose sum is σ = 112179600000. Its totient is φ = 109869940080.

The previous prime is 111022020079. The next prime is 111022020149. The reversal of 111022020121 is 121020220111.

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 111022020121 - 2⁹ = 111022019609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111022020521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334371 + ... + 1415128.

It is an arithmetic number, because the mean of its divisors is an integer number (14022450000).

Almost surely, 2^111022020121 is an apocalyptic number.

It is an amenable number.

111022020121 is a deficient number, since it is larger than the sum of its proper divisors (1157579879).

111022020121 is a wasteful number, since it uses less digits than its factorization.

111022020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749919.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111022020121 its reverse (121020220111), we get a palindrome (232042240232).

The spelling of 111022020121 in words is "one hundred eleven billion, twenty-two million, twenty thousand, one hundred twenty-one".