21102210002369 has 2 divisors, whose sum is σ = 21102210002370. Its totient is φ = 21102210002368.

The previous prime is 21102210002273. The next prime is 21102210002383. The reversal of 21102210002369 is 96320001220112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13833281753344 + 7268928249025 = 3719312^2 + 2696095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21102210002369 is a prime.

It is a super-2 number, since 2×21102210002369² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (21102210032369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10551105001184 + 10551105001185.

It is an arithmetic number, because the mean of its divisors is an integer number (10551105001185).

Almost surely, 2^{21102210002369} is an apocalyptic number.

It is an amenable number.

21102210002369 is a deficient number, since it is larger than the sum of its proper divisors (1).

21102210002369 is an equidigital number, since it uses as much as digits as its factorization.

21102210002369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 21102210002369 in words is "twenty-one trillion, one hundred two billion, two hundred ten million, two thousand, three hundred sixty-nine".