2244342442221 has 24 divisors (see below), whose sum is σ = 3537378505440. Its totient is φ = 1359884887200.

The previous prime is 2244342442217. The next prime is 2244342442289. The reversal of 2244342442221 is 1222442434422.

2244342442221 is a `hidden beast` number, since 2 + 2 + 4 + 4 + 3 + 424 + 4 + 2 + 221 = 666.

It is not a de Polignac number, because 2244342442221 - 2² = 2244342442217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244342442211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2268990 + ... + 3104351.

It is an arithmetic number, because the mean of its divisors is an integer number (147390771060).

Almost surely, 2^{2244342442221} is an apocalyptic number.

It is an amenable number.

2244342442221 is a deficient number, since it is larger than the sum of its proper divisors (1293036063219).

2244342442221 is a wasteful number, since it uses less digits than its factorization.

2244342442221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5377577 (or 5377574 counting only the distinct ones).

The product of its digits is 196608, while the sum is 36.

Adding to 2244342442221 its reverse (1222442434422), we get a palindrome (3466784876643).

The spelling of 2244342442221 in words is "two trillion, two hundred forty-four billion, three hundred forty-two million, four hundred forty-two thousand, two hundred twenty-one".