110112123011221 has 4 divisors (see below), whose sum is σ = 110113028608032. Its totient is φ = 110111217414412.

The previous prime is 110112123011207. The next prime is 110112123011257. The reversal of 110112123011221 is 122110321211011.

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 a de Polignac number, because none of the positive numbers 2^k-110112123011221 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 (110112123011291) 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, 452615995 + ... + 452859208.

It is an arithmetic number, because the mean of its divisors is an integer number (27528257152008).

Almost surely, 2^{110112123011221} is an apocalyptic number.

It is an amenable number.

110112123011221 is a deficient number, since it is larger than the sum of its proper divisors (905596811).

110112123011221 is an equidigital number, since it uses as much as digits as its factorization.

110112123011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905596810.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 110112123011221 its reverse (122110321211011), we get a palindrome (232222444222232).

The spelling of 110112123011221 in words is "one hundred ten trillion, one hundred twelve billion, one hundred twenty-three million, eleven thousand, two hundred twenty-one".