12011222012211 has 24 divisors (see below), whose sum is σ = 17566169166000. Its totient is φ = 7907722428672.

The previous prime is 12011222012171. The next prime is 12011222012221. The reversal of 12011222012211 is 11221022211021.

12011222012211 is a `hidden beast` number, since 120 + 1 + 122 + 201 + 221 + 1 = 666.

12011222012211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12011222012211 - 2³⁰ = 12010148270387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011222012221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8619781 + ... + 9915798.

It is an arithmetic number, because the mean of its divisors is an integer number (731923715250).

Almost surely, 2^{12011222012211} is an apocalyptic number.

12011222012211 is a deficient number, since it is larger than the sum of its proper divisors (5554947153789).

12011222012211 is a wasteful number, since it uses less digits than its factorization.

12011222012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18536483 (or 18536480 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12011222012211 its reverse (11221022211021), we get a palindrome (23232244223232).

The spelling of 12011222012211 in words is "twelve trillion, eleven billion, two hundred twenty-two million, twelve thousand, two hundred eleven".