73200013002221 has 4 divisors (see below), whose sum is σ = 83657157716832. Its totient is φ = 62742868287612.

The previous prime is 73200013002173. The next prime is 73200013002229. The reversal of 73200013002221 is 12220031000237.

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 a de Polignac number, because none of the positive numbers 2^k-73200013002221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73200013002229) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5228572357295 + ... + 5228572357308.

It is an arithmetic number, because the mean of its divisors is an integer number (20914289429208).

Almost surely, 2^{73200013002221} is an apocalyptic number.

It is an amenable number.

73200013002221 is a deficient number, since it is larger than the sum of its proper divisors (10457144714611).

73200013002221 is a wasteful number, since it uses less digits than its factorization.

73200013002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10457144714610.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 73200013002221 its reverse (12220031000237), we get a palindrome (85420044002458).

The spelling of 73200013002221 in words is "seventy-three trillion, two hundred billion, thirteen million, two thousand, two hundred twenty-one".