111112022021 has 32 divisors (see below), whose sum is σ = 157037260800. Its totient is φ = 75714367680.

The previous prime is 111112021991. The next prime is 111112022027. The reversal of 111112022021 is 120220211111.

It is not a de Polignac number, because 111112022021 - 2²⁶ = 111044913157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111112021987 and 111112022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112022027) 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 31 ways as a sum of consecutive naturals, for example, 2902061 + ... + 2940098.

It is an arithmetic number, because the mean of its divisors is an integer number (4907414400).

Almost surely, 2^111112022021 is an apocalyptic number.

111112022021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111112022021 is a deficient number, since it is larger than the sum of its proper divisors (45925238779).

111112022021 is a wasteful number, since it uses less digits than its factorization.

111112022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842209.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111112022021 its reverse (120220211111), we get a palindrome (231332233132).

It can be divided in two parts, 1111 and 12022021, that multiplied together give a palindrome (13356465331).

The spelling of 111112022021 in words is "one hundred eleven billion, one hundred twelve million, twenty-two thousand, twenty-one".