12213132211213 has 4 divisors (see below), whose sum is σ = 12213140702400. Its totient is φ = 12213123720028.

The previous prime is 12213132211169. The next prime is 12213132211361. The reversal of 12213132211213 is 31211223131221.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12213132211213 - 2⁹ = 12213132210701 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 (12213132211013) 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, 1493395 + ... + 5162992.

It is an arithmetic number, because the mean of its divisors is an integer number (3053285175600).

Almost surely, 2^{12213132211213} is an apocalyptic number.

It is an amenable number.

12213132211213 is a deficient number, since it is larger than the sum of its proper divisors (8491187).

12213132211213 is an equidigital number, since it uses as much as digits as its factorization.

12213132211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8491186.

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

Adding to 12213132211213 its reverse (31211223131221), we get a palindrome (43424355342434).

The spelling of 12213132211213 in words is "twelve trillion, two hundred thirteen billion, one hundred thirty-two million, two hundred eleven thousand, two hundred thirteen".