110220120121 has 4 divisors (see below), whose sum is σ = 110231262244. Its totient is φ = 110208978000.

The previous prime is 110220120097. The next prime is 110220120149. The reversal of 110220120121 is 121021022011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82142426025 + 28077694096 = 286605^2 + 167564^2 .

It is a cyclic number.

It is not a de Polignac number, because 110220120121 - 2⁹ = 110220119609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110220120181) 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, 5556210 + ... + 5576011.

It is an arithmetic number, because the mean of its divisors is an integer number (27557815561).

Almost surely, 2^110220120121 is an apocalyptic number.

It is an amenable number.

110220120121 is a deficient number, since it is larger than the sum of its proper divisors (11142123).

110220120121 is an equidigital number, since it uses as much as digits as its factorization.

110220120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11142122.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 110220120121 its reverse (121021022011), we get a palindrome (231241142132).

The spelling of 110220120121 in words is "one hundred ten billion, two hundred twenty million, one hundred twenty thousand, one hundred twenty-one".