19932774300221 has 4 divisors (see below), whose sum is σ = 19977769276512. Its totient is φ = 19887779323932.

The previous prime is 19932774300193. The next prime is 19932774300233. The reversal of 19932774300221 is 12200347723991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19932774300221 - 2¹⁸ = 19932774038077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19932774300221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19932774330221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22497487481 + ... + 22497488366.

It is an arithmetic number, because the mean of its divisors is an integer number (4994442319128).

Almost surely, 2^{19932774300221} is an apocalyptic number.

It is an amenable number.

19932774300221 is a deficient number, since it is larger than the sum of its proper divisors (44994976291).

19932774300221 is an equidigital number, since it uses as much as digits as its factorization.

19932774300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44994976290.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 19932774300221 in words is "nineteen trillion, nine hundred thirty-two billion, seven hundred seventy-four million, three hundred thousand, two hundred twenty-one".