11421440211 has 8 divisors (see below), whose sum is σ = 15890699520. Its totient is φ = 7283237192.

The previous prime is 11421440209. The next prime is 11421440213. The reversal of 11421440211 is 11204412411.

It is an interprime number because it is at equal distance from previous prime (11421440209) and next prime (11421440213).

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

It is a cyclic number.

It is not a de Polignac number, because 11421440211 - 2¹ = 11421440209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11421440213) 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, 82763991 + ... + 82764128.

It is an arithmetic number, because the mean of its divisors is an integer number (1986337440).

Almost surely, 2^11421440211 is an apocalyptic number.

11421440211 is a deficient number, since it is larger than the sum of its proper divisors (4469259309).

11421440211 is a wasteful number, since it uses less digits than its factorization.

11421440211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165528145.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11421440211 its reverse (11204412411), we get a palindrome (22625852622).

The spelling of 11421440211 in words is "eleven billion, four hundred twenty-one million, four hundred forty thousand, two hundred eleven".