2422442221 has 16 divisors (see below), whose sum is σ = 2601512640. Its totient is φ = 2248646400.

The previous prime is 2422442219. The next prime is 2422442227. The reversal of 2422442221 is 1222442242.

It is a cyclic number.

It is not a de Polignac number, because 2422442221 - 2¹ = 2422442219 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 (2422442227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1208406 + ... + 1210408.

It is an arithmetic number, because the mean of its divisors is an integer number (162594540).

Almost surely, 2^2422442221 is an apocalyptic number.

It is an amenable number.

2422442221 is a deficient number, since it is larger than the sum of its proper divisors (179070419).

2422442221 is a wasteful number, since it uses less digits than its factorization.

2422442221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276.

The product of its digits is 4096, while the sum is 25.

The square root of 2422442221 is about 49218.3118463037. The cubic root of 2422442221 is about 1343.0261712488.

Adding to 2422442221 its reverse (1222442242), we get a palindrome (3644884463).

The spelling of 2422442221 in words is "two billion, four hundred twenty-two million, four hundred forty-two thousand, two hundred twenty-one".