11223112011 has 32 divisors (see below), whose sum is σ = 15390735360. Its totient is φ = 7272405504.

The previous prime is 11223112009. The next prime is 11223112091. The reversal of 11223112011 is 11021132211.

It is not a de Polignac number, because 11223112011 - 2¹ = 11223112009 is a prime.

It is a super-2 number, since 2×11223112011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11223112091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6628281 + ... + 6629973.

It is an arithmetic number, because the mean of its divisors is an integer number (480960480).

Almost surely, 2^11223112011 is an apocalyptic number.

11223112011 is a deficient number, since it is larger than the sum of its proper divisors (4167623349).

11223112011 is a wasteful number, since it uses less digits than its factorization.

11223112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11223112011 its reverse (11021132211), we get a palindrome (22244244222).

The spelling of 11223112011 in words is "eleven billion, two hundred twenty-three million, one hundred twelve thousand, eleven".