21410324112209 has 2 divisors, whose sum is σ = 21410324112210. Its totient is φ = 21410324112208.

The previous prime is 21410324112109. The next prime is 21410324112223. The reversal of 21410324112209 is 90221142301412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21385815270400 + 24508841809 = 4624480^2 + 156553^2 .

It is a cyclic number.

It is not a de Polignac number, because 21410324112209 - 2¹⁶ = 21410324046673 is a prime.

It is not a weakly prime, because it can be changed into another prime (21410324112109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705162056104 + 10705162056105.

It is an arithmetic number, because the mean of its divisors is an integer number (10705162056105).

Almost surely, 2^{21410324112209} is an apocalyptic number.

It is an amenable number.

21410324112209 is a deficient number, since it is larger than the sum of its proper divisors (1).

21410324112209 is an equidigital number, since it uses as much as digits as its factorization.

21410324112209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 21410324112209 in words is "twenty-one trillion, four hundred ten billion, three hundred twenty-four million, one hundred twelve thousand, two hundred nine".