11221404143 has 4 divisors (see below), whose sum is σ = 11222022888. Its totient is φ = 11220785400.

The previous prime is 11221404127. The next prime is 11221404193. The reversal of 11221404143 is 34140412211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34140412211 = 107 ⋅319069273.

It is a cyclic number.

It is not a de Polignac number, because 11221404143 - 2⁴ = 11221404127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221404193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281321 + ... + 318722.

It is an arithmetic number, because the mean of its divisors is an integer number (2805505722).

Almost surely, 2^11221404143 is an apocalyptic number.

11221404143 is a deficient number, since it is larger than the sum of its proper divisors (618745).

11221404143 is an equidigital number, since it uses as much as digits as its factorization.

11221404143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618744.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 11221404143 its reverse (34140412211), we get a palindrome (45361816354).

The spelling of 11221404143 in words is "eleven billion, two hundred twenty-one million, four hundred four thousand, one hundred forty-three".