12012211201211 has 32 divisors (see below), whose sum is σ = 13647204648000. Its totient is φ = 10481378323968.

The previous prime is 12012211201201. The next prime is 12012211201217. The reversal of 12012211201211 is 11210211221021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12012211201211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12012211201211.

It is not an unprimeable number, because it can be changed into a prime (12012211201217) 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, 652367441 + ... + 652385853.

It is an arithmetic number, because the mean of its divisors is an integer number (426475145250).

Almost surely, 2^{12012211201211} is an apocalyptic number.

12012211201211 is a deficient number, since it is larger than the sum of its proper divisors (1634993446789).

12012211201211 is a wasteful number, since it uses less digits than its factorization.

12012211201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24143.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12012211201211 its reverse (11210211221021), we get a palindrome (23222422422232).

The spelling of 12012211201211 in words is "twelve trillion, twelve billion, two hundred eleven million, two hundred one thousand, two hundred eleven".