11220440001 has 8 divisors (see below), whose sum is σ = 14994359520. Its totient is φ = 7463406912.

The previous prime is 11220439999. The next prime is 11220440003. The reversal of 11220440001 is 10004402211.

It is an interprime number because it is at equal distance from previous prime (11220439999) and next prime (11220440003).

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

It is not a de Polignac number, because 11220440001 - 2¹ = 11220439999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220440003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4220056 + ... + 4222713.

It is an arithmetic number, because the mean of its divisors is an integer number (1874294940).

Almost surely, 2^11220440001 is an apocalyptic number.

It is an amenable number.

11220440001 is a deficient number, since it is larger than the sum of its proper divisors (3773919519).

11220440001 is an equidigital number, since it uses as much as digits as its factorization.

11220440001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8443215.

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

Adding to 11220440001 its reverse (10004402211), we get a palindrome (21224842212).

The spelling of 11220440001 in words is "eleven billion, two hundred twenty million, four hundred forty thousand, one".