12000220211 has 4 divisors (see below), whose sum is σ = 13714537392. Its totient is φ = 10285903032.

The previous prime is 12000220157. The next prime is 12000220223. The reversal of 12000220211 is 11202200021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11202200021 = 31 ⋅361361291.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12000220211 is a prime.

It is a super-2 number, since 2×12000220211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000220192 and 12000220201.

It is not an unprimeable number, because it can be changed into a prime (12000220231) 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, 857158580 + ... + 857158593.

It is an arithmetic number, because the mean of its divisors is an integer number (3428634348).

Almost surely, 2^12000220211 is an apocalyptic number.

12000220211 is a deficient number, since it is larger than the sum of its proper divisors (1714317181).

12000220211 is an equidigital number, since it uses as much as digits as its factorization.

12000220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714317180.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12000220211 its reverse (11202200021), we get a palindrome (23202420232).

The spelling of 12000220211 in words is "twelve billion, two hundred twenty thousand, two hundred eleven".