72241112201 has 4 divisors (see below), whose sum is σ = 72241654032. Its totient is φ = 72240570372.

The previous prime is 72241112191. The next prime is 72241112231. The reversal of 72241112201 is 10221114227.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72241112201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72241112231) 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, 84506 + ... + 389388.

It is an arithmetic number, because the mean of its divisors is an integer number (18060413508).

Almost surely, 2^72241112201 is an apocalyptic number.

It is an amenable number.

72241112201 is a deficient number, since it is larger than the sum of its proper divisors (541831).

72241112201 is a wasteful number, since it uses less digits than its factorization.

72241112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541830.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 72241112201 its reverse (10221114227), we get a palindrome (82462226428).

The spelling of 72241112201 in words is "seventy-two billion, two hundred forty-one million, one hundred twelve thousand, two hundred one".