110112212220121 has 4 divisors (see below), whose sum is σ = 110112233497600. Its totient is φ = 110112190942644.

The previous prime is 110112212220047. The next prime is 110112212220239. The reversal of 110112212220121 is 121022212211011.

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 110112212220121 - 2⁹ = 110112212219609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110112212223121) 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, 2690920 + ... + 15081958.

It is an arithmetic number, because the mean of its divisors is an integer number (27528058374400).

Almost surely, 2^{110112212220121} is an apocalyptic number.

It is an amenable number.

110112212220121 is a deficient number, since it is larger than the sum of its proper divisors (21277479).

110112212220121 is an equidigital number, since it uses as much as digits as its factorization.

110112212220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21277478.

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

Adding to 110112212220121 its reverse (121022212211011), we get a palindrome (231134424431132).

The spelling of 110112212220121 in words is "one hundred ten trillion, one hundred twelve billion, two hundred twelve million, two hundred twenty thousand, one hundred twenty-one".