11341221505 has 16 divisors (see below), whose sum is σ = 14787878400. Its totient is φ = 8318177280.

The previous prime is 11341221503. The next prime is 11341221511. The reversal of 11341221505 is 50512214311.

It is not a de Polignac number, because 11341221505 - 2¹ = 11341221503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11341221505.

It is not an unprimeable number, because it can be changed into a prime (11341221503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1922560 + ... + 1928449.

It is an arithmetic number, because the mean of its divisors is an integer number (924242400).

Almost surely, 2^11341221505 is an apocalyptic number.

It is an amenable number.

11341221505 is a deficient number, since it is larger than the sum of its proper divisors (3446656895).

11341221505 is a wasteful number, since it uses less digits than its factorization.

11341221505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3851064.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 11341221505 its reverse (50512214311), we get a palindrome (61853435816).

The spelling of 11341221505 in words is "eleven billion, three hundred forty-one million, two hundred twenty-one thousand, five hundred five".