12202210221 has 4 divisors (see below), whose sum is σ = 16269613632. Its totient is φ = 8134806812.

The previous prime is 12202210159. The next prime is 12202210277. The reversal of 12202210221 is 12201220221.

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 an emirpimes, since its reverse is a distinct semiprime: 12201220221 = 3 ⋅4067073407.

It is a cyclic number.

It is not a de Polignac number, because 12202210221 - 2¹⁰ = 12202209197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12202210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202210621) 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, 2033701701 + ... + 2033701706.

It is an arithmetic number, because the mean of its divisors is an integer number (4067403408).

Almost surely, 2^12202210221 is an apocalyptic number.

It is an amenable number.

12202210221 is a deficient number, since it is larger than the sum of its proper divisors (4067403411).

12202210221 is an equidigital number, since it uses as much as digits as its factorization.

12202210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067403410.

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

Adding to 12202210221 its reverse (12201220221), we get a palindrome (24403430442).

The spelling of 12202210221 in words is "twelve billion, two hundred two million, two hundred ten thousand, two hundred twenty-one".