110221112202121 has 4 divisors (see below), whose sum is σ = 110230109121744. Its totient is φ = 110212115282500.

The previous prime is 110221112202107. The next prime is 110221112202161. The reversal of 110221112202121 is 121202211122011.

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 110221112202121 - 2²⁵ = 110221078647689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110221112202161) 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, 4498441435 + ... + 4498465936.

It is an arithmetic number, because the mean of its divisors is an integer number (27557527280436).

Almost surely, 2^{110221112202121} is an apocalyptic number.

It is an amenable number.

110221112202121 is a deficient number, since it is larger than the sum of its proper divisors (8996919623).

110221112202121 is an equidigital number, since it uses as much as digits as its factorization.

110221112202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8996919622.

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

Adding to 110221112202121 its reverse (121202211122011), we get a palindrome (231423323324132).

The spelling of 110221112202121 in words is "one hundred ten trillion, two hundred twenty-one billion, one hundred twelve million, two hundred two thousand, one hundred twenty-one".