2144322021 has 8 divisors (see below), whose sum is σ = 2859857280. Its totient is φ = 1429167392.

The previous prime is 2144321989. The next prime is 2144322041. The reversal of 2144322021 is 1202234412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2144322021 - 2⁵ = 2144321989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144322041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81741 + ... + 104738.

It is an arithmetic number, because the mean of its divisors is an integer number (357482160).

Almost surely, 2^2144322021 is an apocalyptic number.

It is an amenable number.

2144322021 is a deficient number, since it is larger than the sum of its proper divisors (715535259).

2144322021 is a wasteful number, since it uses less digits than its factorization.

2144322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190315.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2144322021 is about 46306.8247777798. The cubic root of 2144322021 is about 1289.5256996792.

Adding to 2144322021 its reverse (1202234412), we get a palindrome (3346556433).

The spelling of 2144322021 in words is "two billion, one hundred forty-four million, three hundred twenty-two thousand, twenty-one".