110222201220121 has 4 divisors (see below), whose sum is σ = 110781704779812. Its totient is φ = 109662697660432.

The previous prime is 110222201220013. The next prime is 110222201220163. The reversal of 110222201220121 is 121022102222011.

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 105397654864896 + 4824546355225 = 10266336^2 + 2196485^2 .

It is a cyclic number.

It is not a de Polignac number, because 110222201220121 - 2⁷ = 110222201219993 is a prime.

It is a super-2 number, since 2×110222201220121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110222201220181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279751779550 + ... + 279751779943.

It is an arithmetic number, because the mean of its divisors is an integer number (27695426194953).

Almost surely, 2^{110222201220121} is an apocalyptic number.

It is an amenable number.

110222201220121 is a deficient number, since it is larger than the sum of its proper divisors (559503559691).

110222201220121 is an equidigital number, since it uses as much as digits as its factorization.

110222201220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559503559690.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 110222201220121 its reverse (121022102222011), we get a palindrome (231244303442132).

The spelling of 110222201220121 in words is "one hundred ten trillion, two hundred twenty-two billion, two hundred one million, two hundred twenty thousand, one hundred twenty-one".