13210220999 has 2 divisors, whose sum is σ = 13210221000. Its totient is φ = 13210220998.

The previous prime is 13210220983. The next prime is 13210221023. The reversal of 13210220999 is 99902201231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13210220999 - 2⁴ = 13210220983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13210220909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605110499 + 6605110500.

It is an arithmetic number, because the mean of its divisors is an integer number (6605110500).

Almost surely, 2^13210220999 is an apocalyptic number.

13210220999 is a deficient number, since it is larger than the sum of its proper divisors (1).

13210220999 is an equidigital number, since it uses as much as digits as its factorization.

13210220999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 38.

The spelling of 13210220999 in words is "thirteen billion, two hundred ten million, two hundred twenty thousand, nine hundred ninety-nine".