2204032421 has 2 divisors, whose sum is σ = 2204032422. Its totient is φ = 2204032420.

The previous prime is 2204032409. The next prime is 2204032423. The reversal of 2204032421 is 1242304022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2154259396 + 49773025 = 46414^2 + 7055^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204032421 - 2²⁶ = 2136923557 is a prime.

Together with 2204032423, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2204032393 and 2204032402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2204032423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102016210 + 1102016211.

It is an arithmetic number, because the mean of its divisors is an integer number (1102016211).

Almost surely, 2^2204032421 is an apocalyptic number.

It is an amenable number.

2204032421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2204032421 is an equidigital number, since it uses as much as digits as its factorization.

2204032421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2204032421 is about 46947.1236712112. The cubic root of 2204032421 is about 1301.3855879506.

Adding to 2204032421 its reverse (1242304022), we get a palindrome (3446336443).

The spelling of 2204032421 in words is "two billion, two hundred four million, thirty-two thousand, four hundred twenty-one".