12212022213 has 8 divisors (see below), whose sum is σ = 18091884800. Its totient is φ = 8141348124.

The previous prime is 12212022203. The next prime is 12212022257. The reversal of 12212022213 is 31222021221.

It is not a de Polignac number, because 12212022213 - 2⁴ = 12212022197 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 (12212022203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226148533 + ... + 226148586.

It is an arithmetic number, because the mean of its divisors is an integer number (2261485600).

Almost surely, 2^12212022213 is an apocalyptic number.

It is an amenable number.

12212022213 is a deficient number, since it is larger than the sum of its proper divisors (5879862587).

12212022213 is an equidigital number, since it uses as much as digits as its factorization.

12212022213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452297128 (or 452297122 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12212022213 its reverse (31222021221), we get a palindrome (43434043434).

The spelling of 12212022213 in words is "twelve billion, two hundred twelve million, twenty-two thousand, two hundred thirteen".