12231142213 has 4 divisors (see below), whose sum is σ = 12874886560. Its totient is φ = 11587397868.

The previous prime is 12231142211. The next prime is 12231142223. The reversal of 12231142213 is 31224113221.

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 12231142213 - 2¹ = 12231142211 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 (12231142211) 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, 321872145 + ... + 321872182.

It is an arithmetic number, because the mean of its divisors is an integer number (3218721640).

Almost surely, 2^12231142213 is an apocalyptic number.

It is an amenable number.

12231142213 is a deficient number, since it is larger than the sum of its proper divisors (643744347).

12231142213 is an equidigital number, since it uses as much as digits as its factorization.

12231142213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643744346.

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

Adding to 12231142213 its reverse (31224113221), we get a palindrome (43455255434).

The spelling of 12231142213 in words is "twelve billion, two hundred thirty-one million, one hundred forty-two thousand, two hundred thirteen".