12020200121011 has 4 divisors (see below), whose sum is σ = 12033028510552. Its totient is φ = 12007371731472.

The previous prime is 12020200121003. The next prime is 12020200121029. The reversal of 12020200121011 is 11012100202021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12020200121011 - 2³ = 12020200121003 is a prime.

It is a super-3 number, since 3×12020200121011³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020200120982 and 12020200121000.

It is not an unprimeable number, because it can be changed into a prime (12020200124011) 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 3 ways as a sum of consecutive naturals, for example, 6414193365 + ... + 6414195238.

It is an arithmetic number, because the mean of its divisors is an integer number (3008257127638).

Almost surely, 2^{12020200121011} is an apocalyptic number.

12020200121011 is a deficient number, since it is larger than the sum of its proper divisors (12828389541).

12020200121011 is an equidigital number, since it uses as much as digits as its factorization.

12020200121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12828389540.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12020200121011 its reverse (11012100202021), we get a palindrome (23032300323032).

The spelling of 12020200121011 in words is "twelve trillion, twenty billion, two hundred million, one hundred twenty-one thousand, eleven".