12011223031211 has 8 divisors (see below), whose sum is σ = 12129076537344. Its totient is φ = 11893393365480.

The previous prime is 12011223031187. The next prime is 12011223031217. The reversal of 12011223031211 is 11213032211021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12011223031211 - 2²² = 12011218836907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011223031217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4946681 + ... + 6963626.

It is an arithmetic number, because the mean of its divisors is an integer number (1516134567168).

Almost surely, 2^{12011223031211} is an apocalyptic number.

12011223031211 is a deficient number, since it is larger than the sum of its proper divisors (117853506133).

12011223031211 is a wasteful number, since it uses less digits than its factorization.

12011223031211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11920201.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12011223031211 its reverse (11213032211021), we get a palindrome (23224255242232).

The spelling of 12011223031211 in words is "twelve trillion, eleven billion, two hundred twenty-three million, thirty-one thousand, two hundred eleven".