19022221847 has 2 divisors, whose sum is σ = 19022221848. Its totient is φ = 19022221846.

The previous prime is 19022221819. The next prime is 19022221937. The reversal of 19022221847 is 74812222091.

It is a weak prime.

It is an emirp because it is prime and its reverse (74812222091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19022221847 - 2¹⁴ = 19022205463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19022221847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19022221817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9511110923 + 9511110924.

It is an arithmetic number, because the mean of its divisors is an integer number (9511110924).

Almost surely, 2^19022221847 is an apocalyptic number.

19022221847 is a deficient number, since it is larger than the sum of its proper divisors (1).

19022221847 is an equidigital number, since it uses as much as digits as its factorization.

19022221847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 19022221847 in words is "nineteen billion, twenty-two million, two hundred twenty-one thousand, eight hundred forty-seven".