2141444021 has 2 divisors, whose sum is σ = 2141444022. Its totient is φ = 2141444020.

The previous prime is 2141443991. The next prime is 2141444023. The reversal of 2141444021 is 1204441412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1990498225 + 150945796 = 44615^2 + 12286^2 .

It is a cyclic number.

It is not a de Polignac number, because 2141444021 - 2²² = 2137249717 is a prime.

Together with 2141444023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2141444023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070722010 + 1070722011.

It is an arithmetic number, because the mean of its divisors is an integer number (1070722011).

Almost surely, 2^2141444021 is an apocalyptic number.

It is an amenable number.

2141444021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141444021 is an equidigital number, since it uses as much as digits as its factorization.

2141444021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 2141444021 is about 46275.7390108467. The cubic root of 2141444021 is about 1288.9485294409.

Adding to 2141444021 its reverse (1204441412), we get a palindrome (3345885433).

The spelling of 2141444021 in words is "two billion, one hundred forty-one million, four hundred forty-four thousand, twenty-one".