2202202221 has 4 divisors (see below), whose sum is σ = 2936269632. Its totient is φ = 1468134812.

The previous prime is 2202202207. The next prime is 2202202241. The reversal of 2202202221 is 1222022022.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2202202221 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 2202202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202202241) 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, 367033701 + ... + 367033706.

It is an arithmetic number, because the mean of its divisors is an integer number (734067408).

Almost surely, 2^2202202221 is an apocalyptic number.

It is an amenable number.

2202202221 is a deficient number, since it is larger than the sum of its proper divisors (734067411).

2202202221 is an equidigital number, since it uses as much as digits as its factorization.

2202202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734067410.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2202202221 is about 46927.6274810479. The cubic root of 2202202221 is about 1301.0252702808.

Adding to 2202202221 its reverse (1222022022), we get a palindrome (3424224243).

The spelling of 2202202221 in words is "two billion, two hundred two million, two hundred two thousand, two hundred twenty-one".