110221221112021 has 4 divisors (see below), whose sum is σ = 110836982124000. Its totient is φ = 109605460100044.

The previous prime is 110221221111959. The next prime is 110221221112069. The reversal of 110221221112021 is 120211122122011.

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 110221221112021 - 2¹⁵ = 110221221079253 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 110221221112021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110221221112081) 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, 307880505721 + ... + 307880506078.

It is an arithmetic number, because the mean of its divisors is an integer number (27709245531000).

Almost surely, 2^{110221221112021} is an apocalyptic number.

It is an amenable number.

110221221112021 is a deficient number, since it is larger than the sum of its proper divisors (615761011979).

110221221112021 is an equidigital number, since it uses as much as digits as its factorization.

110221221112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615761011978.

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

Adding to 110221221112021 its reverse (120211122122011), we get a palindrome (230432343234032).

The spelling of 110221221112021 in words is "one hundred ten trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred twelve thousand, twenty-one".