11247215211 has 48 divisors (see below), whose sum is σ = 17248847616. Its totient is φ = 7047636288.

The previous prime is 11247215209. The next prime is 11247215279. The reversal of 11247215211 is 11251274211.

11247215211 is a `hidden beast` number, since 112 + 4 + 7 + 21 + 521 + 1 = 666.

It is not a de Polignac number, because 11247215211 - 2¹ = 11247215209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11247215201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3382996 + ... + 3386318.

It is an arithmetic number, because the mean of its divisors is an integer number (359350992).

Almost surely, 2^11247215211 is an apocalyptic number.

11247215211 is a deficient number, since it is larger than the sum of its proper divisors (6001632405).

11247215211 is a wasteful number, since it uses less digits than its factorization.

11247215211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632 (or 3629 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

Adding to 11247215211 its reverse (11251274211), we get a palindrome (22498489422).

The spelling of 11247215211 in words is "eleven billion, two hundred forty-seven million, two hundred fifteen thousand, two hundred eleven".