123222013201213 has 4 divisors (see below), whose sum is σ = 123222036917788. Its totient is φ = 123221989484640.

The previous prime is 123222013201211. The next prime is 123222013201307. The reversal of 123222013201213 is 312102310222321.

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 3766250506489 + 119455762694724 = 1940683^2 + 10929582^2 .

It is a cyclic number.

It is not a de Polignac number, because 123222013201213 - 2¹ = 123222013201211 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 (123222013201211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327306 + ... + 15701947.

It is an arithmetic number, because the mean of its divisors is an integer number (30805509229447).

Almost surely, 2^{123222013201213} is an apocalyptic number.

It is an amenable number.

123222013201213 is a deficient number, since it is larger than the sum of its proper divisors (23716575).

123222013201213 is an equidigital number, since it uses as much as digits as its factorization.

123222013201213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23716574.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 123222013201213 its reverse (312102310222321), we get a palindrome (435324323423534).

The spelling of 123222013201213 in words is "one hundred twenty-three trillion, two hundred twenty-two billion, thirteen million, two hundred one thousand, two hundred thirteen".