21322130109019 has 2 divisors, whose sum is σ = 21322130109020. Its totient is φ = 21322130109018.

The previous prime is 21322130109017. The next prime is 21322130109031. The reversal of 21322130109019 is 91090103122312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21322130109019 - 2¹ = 21322130109017 is a prime.

It is a super-5 number, since 5×21322130109019⁵ (a number of 68 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

Together with 21322130109017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (21322130109017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10661065054509 + 10661065054510.

It is an arithmetic number, because the mean of its divisors is an integer number (10661065054510).

Almost surely, 2^{21322130109019} is an apocalyptic number.

21322130109019 is a deficient number, since it is larger than the sum of its proper divisors (1).

21322130109019 is an equidigital number, since it uses as much as digits as its factorization.

21322130109019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 21322130109019 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred thirty million, one hundred nine thousand, nineteen".