2104221013 has 2 divisors, whose sum is σ = 2104221014. Its totient is φ = 2104221012.

The previous prime is 2104220981. The next prime is 2104221023. The reversal of 2104221013 is 3101224012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1409476849 + 694744164 = 37543^2 + 26358^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104221013 - 2⁵ = 2104220981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2104221023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052110506 + 1052110507.

It is an arithmetic number, because the mean of its divisors is an integer number (1052110507).

Almost surely, 2^2104221013 is an apocalyptic number.

It is an amenable number.

2104221013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104221013 is an equidigital number, since it uses as much as digits as its factorization.

2104221013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2104221013 is about 45871.7888576410. The cubic root of 2104221013 is about 1281.4365814560.

Adding to 2104221013 its reverse (3101224012), we get a palindrome (5205445025).

Subtracting 2104221013 from its reverse (3101224012), we obtain a cube (997002999 = 999³).

The spelling of 2104221013 in words is "two billion, one hundred four million, two hundred twenty-one thousand, thirteen".