115021219 has 2 divisors, whose sum is σ = 115021220. Its totient is φ = 115021218.

The previous prime is 115021217. The next prime is 115021223. The reversal of 115021219 is 912120511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115021219 - 2¹ = 115021217 is a prime.

It is a super-2 number, since 2×115021219² = 26459761640491922, which contains 22 as substring.

Together with 115021217, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 115021219.

It is not a weakly prime, because it can be changed into another prime (115021211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57510609 + 57510610.

It is an arithmetic number, because the mean of its divisors is an integer number (57510610).

Almost surely, 2^115021219 is an apocalyptic number.

115021219 is a deficient number, since it is larger than the sum of its proper divisors (1).

115021219 is an equidigital number, since it uses as much as digits as its factorization.

115021219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 115021219 is about 10724.7945901075. The cubic root of 115021219 is about 486.3243204908.

It can be divided in two parts, 11502 and 1219, that added together give a palindrome (12721).

The spelling of 115021219 in words is "one hundred fifteen million, twenty-one thousand, two hundred nineteen".