2244202340221 has 4 divisors (see below), whose sum is σ = 2249007913152. Its totient is φ = 2239396767292.

The previous prime is 2244202340209. The next prime is 2244202340231. The reversal of 2244202340221 is 1220432024422.

It is a happy number.

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 2244202340221 - 2²⁷ = 2244068122493 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 2244202340221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244202340231) 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, 2402785765 + ... + 2402786698.

It is an arithmetic number, because the mean of its divisors is an integer number (562251978288).

Almost surely, 2^{2244202340221} is an apocalyptic number.

It is an amenable number.

2244202340221 is a deficient number, since it is larger than the sum of its proper divisors (4805572931).

2244202340221 is an equidigital number, since it uses as much as digits as its factorization.

2244202340221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805572930.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 2244202340221 its reverse (1220432024422), we get a palindrome (3464634364643).

The spelling of 2244202340221 in words is "two trillion, two hundred forty-four billion, two hundred two million, three hundred forty thousand, two hundred twenty-one".