2202112221 has 16 divisors (see below), whose sum is σ = 3110560704. Its totient is φ = 1380963584.

The previous prime is 2202112219. The next prime is 2202112223. The reversal of 2202112221 is 1222112022.

It is an interprime number because it is at equal distance from previous prime (2202112219) and next prime (2202112223).

It is not a de Polignac number, because 2202112221 - 2¹ = 2202112219 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 2202112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91375 + ... + 112931.

It is an arithmetic number, because the mean of its divisors is an integer number (194410044).

Almost surely, 2^2202112221 is an apocalyptic number.

It is an amenable number.

2202112221 is a deficient number, since it is larger than the sum of its proper divisors (908448483).

2202112221 is a wasteful number, since it uses less digits than its factorization.

2202112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23580.

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

The square root of 2202112221 is about 46926.6685478524. The cubic root of 2202112221 is about 1301.0075465271.

Adding to 2202112221 its reverse (1222112022), we get a palindrome (3424224243).

The spelling of 2202112221 in words is "two billion, two hundred two million, one hundred twelve thousand, two hundred twenty-one".