11303221220201 has 4 divisors (see below), whose sum is σ = 11318641713732. Its totient is φ = 11287800726672.

The previous prime is 11303221220173. The next prime is 11303221220251. The reversal of 11303221220201 is 10202212230311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5897126560000 + 5406094660201 = 2428400^2 + 2325101^2 .

It is a cyclic number.

It is not a de Polignac number, because 11303221220201 - 2¹⁴ = 11303221203817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11303221220251) 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, 7710245666 + ... + 7710247131.

It is an arithmetic number, because the mean of its divisors is an integer number (2829660428433).

Almost surely, 2^{11303221220201} is an apocalyptic number.

It is an amenable number.

11303221220201 is a deficient number, since it is larger than the sum of its proper divisors (15420493531).

11303221220201 is an equidigital number, since it uses as much as digits as its factorization.

11303221220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15420493530.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11303221220201 its reverse (10202212230311), we get a palindrome (21505433450512).

The spelling of 11303221220201 in words is "eleven trillion, three hundred three billion, two hundred twenty-one million, two hundred twenty thousand, two hundred one".