12223231002121 has 4 divisors (see below), whose sum is σ = 12390672522772. Its totient is φ = 12055789481472.

The previous prime is 12223231002083. The next prime is 12223231002149. The reversal of 12223231002121 is 12120013232221.

12223231002121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 6841127958025 + 5382103044096 = 2615555^2 + 2319936^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223231002121 - 2⁹ = 12223231001609 is a prime.

It is a super-2 number, since 2×12223231002121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12223231002092 and 12223231002101.

It is not an unprimeable number, because it can be changed into a prime (12223231002221) 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, 83720760216 + ... + 83720760361.

It is an arithmetic number, because the mean of its divisors is an integer number (3097668130693).

Almost surely, 2^{12223231002121} is an apocalyptic number.

It is an amenable number.

12223231002121 is a deficient number, since it is larger than the sum of its proper divisors (167441520651).

12223231002121 is an equidigital number, since it uses as much as digits as its factorization.

12223231002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167441520650.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12223231002121 its reverse (12120013232221), we get a palindrome (24343244234342).

The spelling of 12223231002121 in words is "twelve trillion, two hundred twenty-three billion, two hundred thirty-one million, two thousand, one hundred twenty-one".