19297222209 has 12 divisors (see below), whose sum is σ = 28772919552. Its totient is φ = 12449820600.

The previous prime is 19297222193. The next prime is 19297222211. The reversal of 19297222209 is 90222279291.

It is a happy number.

It is not a de Polignac number, because 19297222209 - 2⁴ = 19297222193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19297222289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34582557 + ... + 34583114.

It is an arithmetic number, because the mean of its divisors is an integer number (2397743296).

Almost surely, 2^19297222209 is an apocalyptic number.

It is an amenable number.

19297222209 is a deficient number, since it is larger than the sum of its proper divisors (9475697343).

19297222209 is a wasteful number, since it uses less digits than its factorization.

19297222209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69165708 (or 69165705 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 19297222209 in words is "nineteen billion, two hundred ninety-seven million, two hundred twenty-two thousand, two hundred nine".