1104442021 has 2 divisors, whose sum is σ = 1104442022. Its totient is φ = 1104442020.

The previous prime is 1104442007. The next prime is 1104442033. The reversal of 1104442021 is 1202444011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1071252900 + 33189121 = 32730^2 + 5761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1104442021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1104442021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1104448021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552221010 + 552221011.

It is an arithmetic number, because the mean of its divisors is an integer number (552221011).

Almost surely, 2^1104442021 is an apocalyptic number.

It is an amenable number.

1104442021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1104442021 is an equidigital number, since it uses as much as digits as its factorization.

1104442021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1104442021 is about 33233.1464204038. The cubic root of 1104442021 is about 1033.6677674236.

Adding to 1104442021 its reverse (1202444011), we get a palindrome (2306886032).

The spelling of 1104442021 in words is "one billion, one hundred four million, four hundred forty-two thousand, twenty-one".