12211333221011 has 4 divisors (see below), whose sum is σ = 12929646939912. Its totient is φ = 11493019502112.

The previous prime is 12211333220951. The next prime is 12211333221023. The reversal of 12211333221011 is 11012233311221.

It is a happy number.

12211333221011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12211333221011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12211333221091) 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, 359156859425 + ... + 359156859458.

It is an arithmetic number, because the mean of its divisors is an integer number (3232411734978).

Almost surely, 2^{12211333221011} is an apocalyptic number.

12211333221011 is a deficient number, since it is larger than the sum of its proper divisors (718313718901).

12211333221011 is an equidigital number, since it uses as much as digits as its factorization.

12211333221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718313718900.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12211333221011 its reverse (11012233311221), we get a palindrome (23223566532232).

The spelling of 12211333221011 in words is "twelve trillion, two hundred eleven billion, three hundred thirty-three million, two hundred twenty-one thousand, eleven".