111200020022021 has 4 divisors (see below), whose sum is σ = 127085737168032. Its totient is φ = 95314302876012.

The previous prime is 111200020022009. The next prime is 111200020022027. The reversal of 111200020022021 is 120220020002111.

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 111200020022021 - 2²² = 111200015827717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111200020021987 and 111200020022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200020022027) 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 3 ways as a sum of consecutive naturals, for example, 7942858572995 + ... + 7942858573008.

It is an arithmetic number, because the mean of its divisors is an integer number (31771434292008).

Almost surely, 2^{111200020022021} is an apocalyptic number.

It is an amenable number.

111200020022021 is a deficient number, since it is larger than the sum of its proper divisors (15885717146011).

111200020022021 is an equidigital number, since it uses as much as digits as its factorization.

111200020022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15885717146010.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 111200020022021 its reverse (120220020002111), we get a palindrome (231420040024132).

The spelling of 111200020022021 in words is "one hundred eleven trillion, two hundred billion, twenty million, twenty-two thousand, twenty-one".