12220123213 has 16 divisors (see below), whose sum is σ = 12746004480. Its totient is φ = 11702718000.

The previous prime is 12220123207. The next prime is 12220123217. The reversal of 12220123213 is 31232102221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12220123213 is a prime.

It is a super-2 number, since 2×12220123213² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220123217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4811698 + ... + 4814236.

It is an arithmetic number, because the mean of its divisors is an integer number (796625280).

Almost surely, 2^12220123213 is an apocalyptic number.

It is an amenable number.

12220123213 is a deficient number, since it is larger than the sum of its proper divisors (525881267).

12220123213 is a wasteful number, since it uses less digits than its factorization.

12220123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12220123213 its reverse (31232102221), we get a palindrome (43452225434).

The spelling of 12220123213 in words is "twelve billion, two hundred twenty million, one hundred twenty-three thousand, two hundred thirteen".