22011440001 has 4 divisors (see below), whose sum is σ = 29348586672. Its totient is φ = 14674293332.

The previous prime is 22011439991. The next prime is 22011440021. The reversal of 22011440001 is 10004411022.

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 22011440001 - 2⁵ = 22011439969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22011440021) 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, 3668573331 + ... + 3668573336.

It is an arithmetic number, because the mean of its divisors is an integer number (7337146668).

Almost surely, 2^22011440001 is an apocalyptic number.

It is an amenable number.

22011440001 is a deficient number, since it is larger than the sum of its proper divisors (7337146671).

22011440001 is an equidigital number, since it uses as much as digits as its factorization.

22011440001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7337146670.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22011440001 its reverse (10004411022), we get a palindrome (32015851023).

The spelling of 22011440001 in words is "twenty-two billion, eleven million, four hundred forty thousand, one".