13122121219 has 2 divisors, whose sum is σ = 13122121220. Its totient is φ = 13122121218.

The previous prime is 13122121171. The next prime is 13122121241. The reversal of 13122121219 is 91212122131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13122121219 - 2³¹ = 10974637571 is a prime.

It is a super-2 number, since 2×13122121219² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13122121193 and 13122121202.

It is not a weakly prime, because it can be changed into another prime (13122128219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561060609 + 6561060610.

It is an arithmetic number, because the mean of its divisors is an integer number (6561060610).

Almost surely, 2^13122121219 is an apocalyptic number.

13122121219 is a deficient number, since it is larger than the sum of its proper divisors (1).

13122121219 is an equidigital number, since it uses as much as digits as its factorization.

13122121219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 25.

The spelling of 13122121219 in words is "thirteen billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred nineteen".