12021103231211 has 8 divisors (see below), whose sum is σ = 12730355168544. Its totient is φ = 11312087762560.

The previous prime is 12021103231157. The next prime is 12021103231213. The reversal of 12021103231211 is 11213230112021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021103231211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021103231213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59012495 + ... + 59215848.

It is an arithmetic number, because the mean of its divisors is an integer number (1591294396068).

Almost surely, 2^{12021103231211} is an apocalyptic number.

12021103231211 is a deficient number, since it is larger than the sum of its proper divisors (709251937333).

12021103231211 is a wasteful number, since it uses less digits than its factorization.

12021103231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118234341.

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

Adding to 12021103231211 its reverse (11213230112021), we get a palindrome (23234333343232).

The spelling of 12021103231211 in words is "twelve trillion, twenty-one billion, one hundred three million, two hundred thirty-one thousand, two hundred eleven".