5221991219 has 2 divisors, whose sum is σ = 5221991220. Its totient is φ = 5221991218.

The previous prime is 5221991213. The next prime is 5221991233. The reversal of 5221991219 is 9121991225.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5221991219 is a prime.

It is a super-2 number, since 2×5221991219² = 54538384582626211922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5221991213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2610995609 + 2610995610.

It is an arithmetic number, because the mean of its divisors is an integer number (2610995610).

Almost surely, 2^5221991219 is an apocalyptic number.

5221991219 is a deficient number, since it is larger than the sum of its proper divisors (1).

5221991219 is an equidigital number, since it uses as much as digits as its factorization.

5221991219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 41.

The square root of 5221991219 is about 72263.3463036414. The cubic root of 5221991219 is about 1734.9170392221.

The spelling of 5221991219 in words is "five billion, two hundred twenty-one million, nine hundred ninety-one thousand, two hundred nineteen".