12033122011 has 4 divisors (see below), whose sum is σ = 12033371392. Its totient is φ = 12032872632.

The previous prime is 12033121999. The next prime is 12033122029. The reversal of 12033122011 is 11022133021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11022133021 = 457 ⋅24118453.

It is a cyclic number.

It is not a de Polignac number, because 12033122011 - 2¹³ = 12033113819 is a prime.

It is a super-2 number, since 2×12033122011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12033122051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26580 + ... + 157393.

It is an arithmetic number, because the mean of its divisors is an integer number (3008342848).

Almost surely, 2^12033122011 is an apocalyptic number.

12033122011 is a deficient number, since it is larger than the sum of its proper divisors (249381).

12033122011 is an equidigital number, since it uses as much as digits as its factorization.

12033122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249380.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12033122011 its reverse (11022133021), we get a palindrome (23055255032).

The spelling of 12033122011 in words is "twelve billion, thirty-three million, one hundred twenty-two thousand, eleven".