12223113121013 has 4 divisors (see below), whose sum is σ = 12223999574220. Its totient is φ = 12222226667808.

The previous prime is 12223113120979. The next prime is 12223113121031. The reversal of 12223113121013 is 31012131132221.

It is a happy number.

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 5207697433444 + 7015415687569 = 2282038^2 + 2648663^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223113121013 - 2⁶ = 12223113120949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12223113121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223113121913) 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, 443205920 + ... + 443233497.

It is an arithmetic number, because the mean of its divisors is an integer number (3055999893555).

Almost surely, 2^{12223113121013} is an apocalyptic number.

It is an amenable number.

12223113121013 is a deficient number, since it is larger than the sum of its proper divisors (886453207).

12223113121013 is an equidigital number, since it uses as much as digits as its factorization.

12223113121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886453206.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12223113121013 its reverse (31012131132221), we get a palindrome (43235244253234).

The spelling of 12223113121013 in words is "twelve trillion, two hundred twenty-three billion, one hundred thirteen million, one hundred twenty-one thousand, thirteen".