72110201021 has 8 divisors (see below), whose sum is σ = 72288944640. Its totient is φ = 71931524112.

The previous prime is 72110201011. The next prime is 72110201039. The reversal of 72110201021 is 12010201127.

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 72110201021 - 2⁶ = 72110200957 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 (72110201011) 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 7 ways as a sum of consecutive naturals, for example, 2678996 + ... + 2705778.

It is an arithmetic number, because the mean of its divisors is an integer number (9036118080).

Almost surely, 2^72110201021 is an apocalyptic number.

It is an amenable number.

72110201021 is a deficient number, since it is larger than the sum of its proper divisors (178743619).

72110201021 is a wasteful number, since it uses less digits than its factorization.

72110201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33355.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 72110201021 its reverse (12010201127), we get a palindrome (84120402148).

The spelling of 72110201021 in words is "seventy-two billion, one hundred ten million, two hundred one thousand, twenty-one".