110112212122021 has 4 divisors (see below), whose sum is σ = 111506037592000. Its totient is φ = 108718386652044.

The previous prime is 110112212121941. The next prime is 110112212122097. The reversal of 110112212122021 is 120221212211011.

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 110112212122021 - 2³⁷ = 109974773168549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 110112212122021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110112212222021) 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, 696912734871 + ... + 696912735028.

It is an arithmetic number, because the mean of its divisors is an integer number (27876509398000).

Almost surely, 2^{110112212122021} is an apocalyptic number.

It is an amenable number.

110112212122021 is a deficient number, since it is larger than the sum of its proper divisors (1393825469979).

110112212122021 is an equidigital number, since it uses as much as digits as its factorization.

110112212122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393825469978.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 110112212122021 its reverse (120221212211011), we get a palindrome (230333424333032).

The spelling of 110112212122021 in words is "one hundred ten trillion, one hundred twelve billion, two hundred twelve million, one hundred twenty-two thousand, twenty-one".