11220032401 has 4 divisors (see below), whose sum is σ = 11606930100. Its totient is φ = 10833134704.

The previous prime is 11220032333. The next prime is 11220032413. The reversal of 11220032401 is 10423002211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10423002211 = 1381 ⋅7547431.

It can be written as a sum of positive squares in 2 ways, for example, as 3249114001 + 7970918400 = 57001^2 + 89280^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220032401 - 2¹³ = 11220024209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220032471) 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, 193448806 + ... + 193448863.

It is an arithmetic number, because the mean of its divisors is an integer number (2901732525).

Almost surely, 2^11220032401 is an apocalyptic number.

It is an amenable number.

11220032401 is a deficient number, since it is larger than the sum of its proper divisors (386897699).

11220032401 is an equidigital number, since it uses as much as digits as its factorization.

11220032401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386897698.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 11220032401 its reverse (10423002211), we get a palindrome (21643034612).

The spelling of 11220032401 in words is "eleven billion, two hundred twenty million, thirty-two thousand, four hundred one".