110112022112221 has 4 divisors (see below), whose sum is σ = 111247197598012. Its totient is φ = 108976846626432.

The previous prime is 110112022112171. The next prime is 110112022112227. The reversal of 110112022112221 is 122211220211011.

It is a happy number.

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 82060317451225 + 28051704660996 = 9058715^2 + 5296386^2 .

It is a cyclic number.

It is not a de Polignac number, because 110112022112221 - 2¹⁵ = 110112022079453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110112022112227) 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, 567587742750 + ... + 567587742943.

It is an arithmetic number, because the mean of its divisors is an integer number (27811799399503).

Almost surely, 2^{110112022112221} is an apocalyptic number.

It is an amenable number.

110112022112221 is a deficient number, since it is larger than the sum of its proper divisors (1135175485791).

110112022112221 is an equidigital number, since it uses as much as digits as its factorization.

110112022112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135175485790.

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

Adding to 110112022112221 its reverse (122211220211011), we get a palindrome (232323242323232).

The spelling of 110112022112221 in words is "one hundred ten trillion, one hundred twelve billion, twenty-two million, one hundred twelve thousand, two hundred twenty-one".