2122021219 has 2 divisors, whose sum is σ = 2122021220. Its totient is φ = 2122021218.

The previous prime is 2122021217. The next prime is 2122021229. The reversal of 2122021219 is 9121202212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122021219 - 2¹ = 2122021217 is a prime.

It is a super-2 number, since 2×2122021219² = 9005948107772491922, which contains 22 as substring.

Together with 2122021217, 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 2122021219.

It is not a weakly prime, because it can be changed into another prime (2122021217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061010609 + 1061010610.

It is an arithmetic number, because the mean of its divisors is an integer number (1061010610).

Almost surely, 2^2122021219 is an apocalyptic number.

2122021219 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122021219 is an equidigital number, since it uses as much as digits as its factorization.

2122021219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2122021219 is about 46065.4015395503. The cubic root of 2122021219 is about 1285.0397861987.

The spelling of 2122021219 in words is "two billion, one hundred twenty-two million, twenty-one thousand, two hundred nineteen".