12022210221 has 12 divisors (see below), whose sum is σ = 18646693632. Its totient is φ = 6869834328.

The previous prime is 12022210201. The next prime is 12022210241. The reversal of 12022210221 is 12201222021.

It is an interprime number because it is at equal distance from previous prime (12022210201) and next prime (12022210241).

It is not a de Polignac number, because 12022210221 - 2⁹ = 12022209709 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12022210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022210201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40891725 + ... + 40892018.

It is an arithmetic number, because the mean of its divisors is an integer number (1553891136).

Almost surely, 2^12022210221 is an apocalyptic number.

It is an amenable number.

12022210221 is a deficient number, since it is larger than the sum of its proper divisors (6624483411).

12022210221 is an equidigital number, since it uses as much as digits as its factorization.

12022210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81783760 (or 81783753 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12022210221 its reverse (12201222021), we get a palindrome (24223432242).

The spelling of 12022210221 in words is "twelve billion, twenty-two million, two hundred ten thousand, two hundred twenty-one".