19222971397226 has 16 divisors (see below), whose sum is σ = 29131964615880. Its totient is φ = 9512318192640.

The previous prime is 19222971397199. The next prime is 19222971397261. The reversal of 19222971397226 is 62279317922291.

It can be written as a sum of positive squares in 4 ways, for example, as 8744446324201 + 10478525073025 = 2957101^2 + 3237055^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27515156 + ... + 28205136.

Almost surely, 2^{19222971397226} is an apocalyptic number.

19222971397226 is a deficient number, since it is larger than the sum of its proper divisors (9908993218654).

19222971397226 is a wasteful number, since it uses less digits than its factorization.

19222971397226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833689.

The product of its digits is 20575296, while the sum is 62.

The spelling of 19222971397226 in words is "nineteen trillion, two hundred twenty-two billion, nine hundred seventy-one million, three hundred ninety-seven thousand, two hundred twenty-six".