13021219 has 2 divisors, whose sum is σ = 13021220. Its totient is φ = 13021218.

The previous prime is 13021207. The next prime is 13021247. The reversal of 13021219 is 91212031.

It is a weak prime.

It is an emirp because it is prime and its reverse (91212031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13021219 - 2¹³ = 13013027 is a prime.

It is a super-2 number, since 2×13021219² = 339104288491922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13021196 and 13021205.

It is not a weakly prime, because it can be changed into another prime (13025219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510609 + 6510610.

It is an arithmetic number, because the mean of its divisors is an integer number (6510610).

Almost surely, 2^13021219 is an apocalyptic number.

13021219 is a deficient number, since it is larger than the sum of its proper divisors (1).

13021219 is an equidigital number, since it uses as much as digits as its factorization.

13021219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 13021219 is about 3608.4926215804. The cubic root of 13021219 is about 235.2613299252.

The spelling of 13021219 in words is "thirteen million, twenty-one thousand, two hundred nineteen".