12220021021211 has 8 divisors (see below), whose sum is σ = 12504256671984. Its totient is φ = 11935787603040.

The previous prime is 12220021021163. The next prime is 12220021021253. The reversal of 12220021021211 is 11212012002221.

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 12220021021211 - 2²⁶ = 12219953912347 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 12220021021211.

It is not an unprimeable number, because it can be changed into a prime (12220021021111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16530281 + ... + 17253701.

It is an arithmetic number, because the mean of its divisors is an integer number (1563032083998).

Almost surely, 2^{12220021021211} is an apocalyptic number.

12220021021211 is a deficient number, since it is larger than the sum of its proper divisors (284235650773).

12220021021211 is an equidigital number, since it uses as much as digits as its factorization.

12220021021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116301.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12220021021211 its reverse (11212012002221), we get a palindrome (23432033023432).

The spelling of 12220021021211 in words is "twelve trillion, two hundred twenty billion, twenty-one million, twenty-one thousand, two hundred eleven".