15212651219 has 2 divisors, whose sum is σ = 15212651220. Its totient is φ = 15212651218.

The previous prime is 15212651197. The next prime is 15212651221. The reversal of 15212651219 is 91215621251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15212651219 - 2¹⁶ = 15212585683 is a prime.

It is a super-2 number, since 2×15212651219² (a number of 21 digits) contains 22 as substring.

Together with 15212651221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15212651239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7606325609 + 7606325610.

It is an arithmetic number, because the mean of its divisors is an integer number (7606325610).

Almost surely, 2^15212651219 is an apocalyptic number.

15212651219 is a deficient number, since it is larger than the sum of its proper divisors (1).

15212651219 is an equidigital number, since it uses as much as digits as its factorization.

15212651219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 35.

The spelling of 15212651219 in words is "fifteen billion, two hundred twelve million, six hundred fifty-one thousand, two hundred nineteen".