11572272001 has 4 divisors (see below), whose sum is σ = 11627117104. Its totient is φ = 11517426900.

The previous prime is 11572271999. The next prime is 11572272067. The reversal of 11572272001 is 10027227511.

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 11572272001 - 2¹ = 11572271999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11572272071) 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, 27422235 + ... + 27422656.

It is an arithmetic number, because the mean of its divisors is an integer number (2906779276).

Almost surely, 2^11572272001 is an apocalyptic number.

It is an amenable number.

11572272001 is a deficient number, since it is larger than the sum of its proper divisors (54845103).

11572272001 is an equidigital number, since it uses as much as digits as its factorization.

11572272001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54845102.

The product of its (nonzero) digits is 1960, while the sum is 28.

Adding to 11572272001 its reverse (10027227511), we get a palindrome (21599499512).

The spelling of 11572272001 in words is "eleven billion, five hundred seventy-two million, two hundred seventy-two thousand, one".