2224404221 has 32 divisors (see below), whose sum is σ = 2606408448. Its totient is φ = 1881792000.

The previous prime is 2224404211. The next prime is 2224404251. The reversal of 2224404221 is 1224044222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2224404221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2224404211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 739721 + ... + 742721.

It is an arithmetic number, because the mean of its divisors is an integer number (81450264).

Almost surely, 2^2224404221 is an apocalyptic number.

It is an amenable number.

2224404221 is a deficient number, since it is larger than the sum of its proper divisors (382004227).

2224404221 is a wasteful number, since it uses less digits than its factorization.

2224404221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 2224404221 is about 47163.5899927052. The cubic root of 2224404221 is about 1305.3828524926.

Adding to 2224404221 its reverse (1224044222), we get a palindrome (3448448443).

The spelling of 2224404221 in words is "two billion, two hundred twenty-four million, four hundred four thousand, two hundred twenty-one".