12012011000001 has 24 divisors (see below), whose sum is σ = 18376880464800. Its totient is φ = 7534663145856.

The previous prime is 12012010999987. The next prime is 12012011000057. The reversal of 12012011000001 is 10000011021021.

It is a happy number.

It is not a de Polignac number, because 12012011000001 - 2¹¹ = 12012010997953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (12012011020001) 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 23 ways as a sum of consecutive naturals, for example, 11394295 + ... + 12403788.

It is an arithmetic number, because the mean of its divisors is an integer number (765703352700).

Almost surely, 2^{12012011000001} is an apocalyptic number.

It is an amenable number.

12012011000001 is a deficient number, since it is larger than the sum of its proper divisors (6364869464799).

12012011000001 is a wasteful number, since it uses less digits than its factorization.

12012011000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23801405 (or 23801402 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12012011000001 its reverse (10000011021021), we get a palindrome (22012022021022).

The spelling of 12012011000001 in words is "twelve trillion, twelve billion, eleven million, one", and thus it is an aban number and an uban number.