12021311302211 has 8 divisors (see below), whose sum is σ = 12053146908144. Its totient is φ = 11989509477120.

The previous prime is 12021311302199. The next prime is 12021311302327. The reversal of 12021311302211 is 11220311312021.

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-12021311302211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021311902211) 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, 7732466 + ... + 9156071.

It is an arithmetic number, because the mean of its divisors is an integer number (1506643363518).

Almost surely, 2^{12021311302211} is an apocalyptic number.

12021311302211 is a deficient number, since it is larger than the sum of its proper divisors (31835605933).

12021311302211 is a wasteful number, since it uses less digits than its factorization.

12021311302211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16890421.

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

Adding to 12021311302211 its reverse (11220311312021), we get a palindrome (23241622614232).

The spelling of 12021311302211 in words is "twelve trillion, twenty-one billion, three hundred eleven million, three hundred two thousand, two hundred eleven".