12020002121211 has 12 divisors (see below), whose sum is σ = 18643268596392. Its totient is φ = 6868572640608.

The previous prime is 12020002121207. The next prime is 12020002121221. The reversal of 12020002121211 is 11212120002021.

It is not a de Polignac number, because 12020002121211 - 2² = 12020002121207 is a prime.

It is a super-2 number, since 2×12020002121211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12020002121221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40884360810 + ... + 40884361103.

It is an arithmetic number, because the mean of its divisors is an integer number (1553605716366).

Almost surely, 2^{12020002121211} is an apocalyptic number.

12020002121211 is a deficient number, since it is larger than the sum of its proper divisors (6623266475181).

12020002121211 is an equidigital number, since it uses as much as digits as its factorization.

12020002121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81768721930 (or 81768721923 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12020002121211 its reverse (11212120002021), we get a palindrome (23232122123232).

The spelling of 12020002121211 in words is "twelve trillion, twenty billion, two million, one hundred twenty-one thousand, two hundred eleven".