111120010122021 has 4 divisors (see below), whose sum is σ = 148160013496032. Its totient is φ = 74080006748012.

The previous prime is 111120010121951. The next prime is 111120010122031. The reversal of 111120010122021 is 120221010021111.

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 111120010122021 - 2²³ = 111120001733413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120010122031) 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, 18520001687001 + ... + 18520001687006.

It is an arithmetic number, because the mean of its divisors is an integer number (37040003374008).

Almost surely, 2^{111120010122021} is an apocalyptic number.

It is an amenable number.

111120010122021 is a deficient number, since it is larger than the sum of its proper divisors (37040003374011).

111120010122021 is an equidigital number, since it uses as much as digits as its factorization.

111120010122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37040003374010.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111120010122021 its reverse (120221010021111), we get a palindrome (231341020143132).

The spelling of 111120010122021 in words is "one hundred eleven trillion, one hundred twenty billion, ten million, one hundred twenty-two thousand, twenty-one".