12212231032213 has 4 divisors (see below), whose sum is σ = 12606173968768. Its totient is φ = 11818288095660.

The previous prime is 12212231032193. The next prime is 12212231032231. The reversal of 12212231032213 is 31223013221221.

12212231032213 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-12212231032213 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 (12212231092213) 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, 196971468231 + ... + 196971468292.

It is an arithmetic number, because the mean of its divisors is an integer number (3151543492192).

Almost surely, 2^{12212231032213} is an apocalyptic number.

It is an amenable number.

12212231032213 is a deficient number, since it is larger than the sum of its proper divisors (393942936555).

12212231032213 is an equidigital number, since it uses as much as digits as its factorization.

12212231032213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393942936554.

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

Adding to 12212231032213 its reverse (31223013221221), we get a palindrome (43435244253434).

The spelling of 12212231032213 in words is "twelve trillion, two hundred twelve billion, two hundred thirty-one million, thirty-two thousand, two hundred thirteen".