111112232032021 has 4 divisors (see below), whose sum is σ = 121213344034944. Its totient is φ = 101011120029100.

The previous prime is 111112232031991. The next prime is 111112232032079. The reversal of 111112232032021 is 120230232211111.

It is a happy number.

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 not a de Polignac number, because 111112232032021 - 2⁷ = 111112232031893 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111112232031983 and 111112232032001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112232039021) 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, 5050556001445 + ... + 5050556001466.

It is an arithmetic number, because the mean of its divisors is an integer number (30303336008736).

Almost surely, 2^{111112232032021} is an apocalyptic number.

111112232032021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111112232032021 is a deficient number, since it is larger than the sum of its proper divisors (10101112002923).

111112232032021 is a wasteful number, since it uses less digits than its factorization.

111112232032021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101112002922.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 111112232032021 its reverse (120230232211111), we get a palindrome (231342464243132).

The spelling of 111112232032021 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred thirty-two million, thirty-two thousand, twenty-one".