12012020011 has 8 divisors (see below), whose sum is σ = 12271493520. Its totient is φ = 11753762592.

The previous prime is 12012019973. The next prime is 12012020063. The reversal of 12012020011 is 11002021021.

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 12012020011 - 2⁷ = 12012019883 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 12012020011.

It is not an unprimeable number, because it can be changed into a prime (12012020311) 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, 284041 + ... + 323578.

It is an arithmetic number, because the mean of its divisors is an integer number (1533936690).

Almost surely, 2^12012020011 is an apocalyptic number.

12012020011 is a deficient number, since it is larger than the sum of its proper divisors (259473509).

12012020011 is an equidigital number, since it uses as much as digits as its factorization.

12012020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608045.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12012020011 its reverse (11002021021), we get a palindrome (23014041032).

The spelling of 12012020011 in words is "twelve billion, twelve million, twenty thousand, eleven".