2242101221 has 4 divisors (see below), whose sum is σ = 2247303744. Its totient is φ = 2236898700.

The previous prime is 2242101209. The next prime is 2242101229. The reversal of 2242101221 is 1221012422.

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 2242101221 - 2¹⁰ = 2242100197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2242101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242101229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2600615 + ... + 2601476.

It is an arithmetic number, because the mean of its divisors is an integer number (561825936).

Almost surely, 2^2242101221 is an apocalyptic number.

It is an amenable number.

2242101221 is a deficient number, since it is larger than the sum of its proper divisors (5202523).

2242101221 is an equidigital number, since it uses as much as digits as its factorization.

2242101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5202522.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2242101221 is about 47350.8312598628. The cubic root of 2242101221 is about 1308.8355172426.

Adding to 2242101221 its reverse (1221012422), we get a palindrome (3463113643).

The spelling of 2242101221 in words is "two billion, two hundred forty-two million, one hundred one thousand, two hundred twenty-one".