2141422321 has 6 divisors (see below), whose sum is σ = 2217811622. Its totient is φ = 2067579360.

The previous prime is 2141422307. The next prime is 2141422363. The reversal of 2141422321 is 1232241412.

It can be written as a sum of positive squares in 3 ways, for example, as 380445025 + 1760977296 = 19505^2 + 41964^2 .

It is not a de Polignac number, because 2141422321 - 2⁷ = 2141422193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2141422292 and 2141422301.

It is not an unprimeable number, because it can be changed into a prime (2141422021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1272300 + ... + 1273981.

Almost surely, 2^2141422321 is an apocalyptic number.

It is an amenable number.

2141422321 is a deficient number, since it is larger than the sum of its proper divisors (76389301).

2141422321 is an equidigital number, since it uses as much as digits as its factorization.

2141422321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546339 (or 2546310 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 2141422321 is about 46275.5045461419. The cubic root of 2141422321 is about 1288.9441756377.

Adding to 2141422321 its reverse (1232241412), we get a palindrome (3373663733).

The spelling of 2141422321 in words is "two billion, one hundred forty-one million, four hundred twenty-two thousand, three hundred twenty-one".