12220032213 has 6 divisors (see below), whose sum is σ = 17651157654. Its totient is φ = 8146688136.

The previous prime is 12220032199. The next prime is 12220032257. The reversal of 12220032213 is 31223002221.

It can be written as a sum of positive squares in only one way, i.e., 11461415364 + 758616849 = 107058^2 + 27543^2 .

It is not a de Polignac number, because 12220032213 - 2¹⁰ = 12220031189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220032283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678890670 + ... + 678890687.

It is an arithmetic number, because the mean of its divisors is an integer number (2941859609).

Almost surely, 2^12220032213 is an apocalyptic number.

It is an amenable number.

12220032213 is a deficient number, since it is larger than the sum of its proper divisors (5431125441).

12220032213 is a wasteful number, since it uses less digits than its factorization.

12220032213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357781363 (or 1357781360 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12220032213 its reverse (31223002221), we get a palindrome (43443034434).

The spelling of 12220032213 in words is "twelve billion, two hundred twenty million, thirty-two thousand, two hundred thirteen".