72412061100221 has 8 divisors (see below), whose sum is σ = 73314201694944. Its totient is φ = 71510627794320.

The previous prime is 72412061100193. The next prime is 72412061100271. The reversal of 72412061100221 is 12200116021427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72412061100221 - 2³⁴ = 72394881231037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72412061100271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176616170 + ... + 177025691.

It is an arithmetic number, because the mean of its divisors is an integer number (9164275211868).

Almost surely, 2^{72412061100221} is an apocalyptic number.

It is an amenable number.

72412061100221 is a deficient number, since it is larger than the sum of its proper divisors (902140594723).

72412061100221 is a wasteful number, since it uses less digits than its factorization.

72412061100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353644411.

The product of its (nonzero) digits is 2688, while the sum is 29.

Adding to 72412061100221 its reverse (12200116021427), we get a palindrome (84612177121648).

The spelling of 72412061100221 in words is "seventy-two trillion, four hundred twelve billion, sixty-one million, one hundred thousand, two hundred twenty-one".