111000022132021 has 4 divisors (see below), whose sum is σ = 121090933234944. Its totient is φ = 100909111029100.

The previous prime is 111000022131983. The next prime is 111000022132033. The reversal of 111000022132021 is 120231220000111.

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 not a de Polignac number, because 111000022132021 - 2¹⁷ = 111000022000949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111000022131986 and 111000022132004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000022162021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5045455551445 + ... + 5045455551466.

It is an arithmetic number, because the mean of its divisors is an integer number (30272733308736).

Almost surely, 2^{111000022132021} is an apocalyptic number.

111000022132021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111000022132021 is a deficient number, since it is larger than the sum of its proper divisors (10090911102923).

111000022132021 is a wasteful number, since it uses less digits than its factorization.

111000022132021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10090911102922.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 111000022132021 its reverse (120231220000111), we get a palindrome (231231242132132).

The spelling of 111000022132021 in words is "one hundred eleven trillion, twenty-two million, one hundred thirty-two thousand, twenty-one".