12021021110211 has 8 divisors (see below), whose sum is σ = 16028090883840. Its totient is φ = 8013982705032.

The previous prime is 12021021110209. The next prime is 12021021110239. The reversal of 12021021110211 is 11201112012021.

It is a happy number.

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

It is not a de Polignac number, because 12021021110211 - 2¹ = 12021021110209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12021021110291) 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, 6932871 + ... + 8491568.

It is an arithmetic number, because the mean of its divisors is an integer number (2003511360480).

Almost surely, 2^{12021021110211} is an apocalyptic number.

12021021110211 is a deficient number, since it is larger than the sum of its proper divisors (4007069773629).

12021021110211 is a wasteful number, since it uses less digits than its factorization.

12021021110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15684225.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12021021110211 its reverse (11201112012021), we get a palindrome (23222133122232).

The spelling of 12021021110211 in words is "twelve trillion, twenty-one billion, twenty-one million, one hundred ten thousand, two hundred eleven".