2242112221 has 4 divisors (see below), whose sum is σ = 2242598944. Its totient is φ = 2241625500.

The previous prime is 2242112209. The next prime is 2242112237. The reversal of 2242112221 is 1222112422.

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 not a de Polignac number, because 2242112221 - 2⁵ = 2242112189 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 (2242112261) 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, 236385 + ... + 245686.

It is an arithmetic number, because the mean of its divisors is an integer number (560649736).

Almost surely, 2^2242112221 is an apocalyptic number.

It is an amenable number.

2242112221 is a deficient number, since it is larger than the sum of its proper divisors (486723).

2242112221 is an equidigital number, since it uses as much as digits as its factorization.

2242112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486722.

The product of its digits is 256, while the sum is 19.

The square root of 2242112221 is about 47350.9474139642. The cubic root of 2242112221 is about 1308.8376576704.

Adding to 2242112221 its reverse (1222112422), we get a palindrome (3464224643).

The spelling of 2242112221 in words is "two billion, two hundred forty-two million, one hundred twelve thousand, two hundred twenty-one".