2204443121 has 2 divisors, whose sum is σ = 2204443122. Its totient is φ = 2204443120.

The previous prime is 2204443067. The next prime is 2204443127. The reversal of 2204443121 is 1213444022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2203363600 + 1079521 = 46940^2 + 1039^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204443121 - 2²⁶ = 2137334257 is a prime.

It is not a weakly prime, because it can be changed into another prime (2204443127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102221560 + 1102221561.

It is an arithmetic number, because the mean of its divisors is an integer number (1102221561).

Almost surely, 2^2204443121 is an apocalyptic number.

It is an amenable number.

2204443121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2204443121 is an equidigital number, since it uses as much as digits as its factorization.

2204443121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2204443121 is about 46951.4975373523. The cubic root of 2204443121 is about 1301.4664164449.

Adding to 2204443121 its reverse (1213444022), we get a palindrome (3417887143).

Subtracting from 2204443121 its reverse (1213444022), we obtain a palindrome (990999099).

The spelling of 2204443121 in words is "two billion, two hundred four million, four hundred forty-three thousand, one hundred twenty-one".