2244330021 has 32 divisors (see below), whose sum is σ = 3226953600. Its totient is φ = 1382363136.

The previous prime is 2244330017. The next prime is 2244330047. The reversal of 2244330021 is 1200334422.

It is not a de Polignac number, because 2244330021 - 2² = 2244330017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2244330021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244330061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1150555 + ... + 1152503.

It is an arithmetic number, because the mean of its divisors is an integer number (100842300).

Almost surely, 2^2244330021 is an apocalyptic number.

It is an amenable number.

2244330021 is a deficient number, since it is larger than the sum of its proper divisors (982623579).

2244330021 is a wasteful number, since it uses less digits than its factorization.

2244330021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2244330021 is about 47374.3603756293. The cubic root of 2244330021 is about 1309.2690639083.

Adding to 2244330021 its reverse (1200334422), we get a palindrome (3444664443).

The spelling of 2244330021 in words is "two billion, two hundred forty-four million, three hundred thirty thousand, twenty-one".