110312212321021 has 4 divisors (see below), whose sum is σ = 110314052420544. Its totient is φ = 110310372221500.

The previous prime is 110312212321001. The next prime is 110312212321033. The reversal of 110312212321021 is 120123212213011.

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 a de Polignac number, because none of the positive numbers 2^k-110312212321021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110312212320983 and 110312212321001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110312212321001) 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, 919959835 + ... + 920079736.

It is an arithmetic number, because the mean of its divisors is an integer number (27578513105136).

Almost surely, 2^{110312212321021} is an apocalyptic number.

It is an amenable number.

110312212321021 is a deficient number, since it is larger than the sum of its proper divisors (1840099523).

110312212321021 is an equidigital number, since it uses as much as digits as its factorization.

110312212321021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840099522.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 110312212321021 its reverse (120123212213011), we get a palindrome (230435424534032).

The spelling of 110312212321021 in words is "one hundred ten trillion, three hundred twelve billion, two hundred twelve million, three hundred twenty-one thousand, twenty-one".