13221210019 has 2 divisors, whose sum is σ = 13221210020. Its totient is φ = 13221210018.

The previous prime is 13221210011. The next prime is 13221210049. The reversal of 13221210019 is 91001212231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13221210019 - 2³ = 13221210011 is a prime.

It is a super-2 number, since 2×13221210019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13221210011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610605009 + 6610605010.

It is an arithmetic number, because the mean of its divisors is an integer number (6610605010).

Almost surely, 2^13221210019 is an apocalyptic number.

13221210019 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221210019 is an equidigital number, since it uses as much as digits as its factorization.

13221210019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 13221210019 in words is "thirteen billion, two hundred twenty-one million, two hundred ten thousand, nineteen".