123222331011121 has 4 divisors (see below), whose sum is σ = 124492664320612. Its totient is φ = 121951997701632.

The previous prime is 123222331011103. The next prime is 123222331011179. The reversal of 123222331011121 is 121110133222321.

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 101552700856896 + 21669630154225 = 10077336^2 + 4655065^2 .

It is a cyclic number.

It is not a de Polignac number, because 123222331011121 - 2²³ = 123222322622513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123222331011181) 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, 635166654600 + ... + 635166654793.

It is an arithmetic number, because the mean of its divisors is an integer number (31123166080153).

Almost surely, 2^{123222331011121} is an apocalyptic number.

It is an amenable number.

123222331011121 is a deficient number, since it is larger than the sum of its proper divisors (1270333309491).

123222331011121 is an equidigital number, since it uses as much as digits as its factorization.

123222331011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270333309490.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 123222331011121 its reverse (121110133222321), we get a palindrome (244332464233442).

The spelling of 123222331011121 in words is "one hundred twenty-three trillion, two hundred twenty-two billion, three hundred thirty-one million, eleven thousand, one hundred twenty-one".