12000001212011 has 4 divisors (see below), whose sum is σ = 12012808044552. Its totient is φ = 11987194379472.

The previous prime is 12000001212007. The next prime is 12000001212053. The reversal of 12000001212011 is 11021210000021.

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 12000001212011 - 2² = 12000001212007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000001211983 and 12000001212001.

It is not an unprimeable number, because it can be changed into a prime (12000001215011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6403414865 + ... + 6403416738.

It is an arithmetic number, because the mean of its divisors is an integer number (3003202011138).

Almost surely, 2^{12000001212011} is an apocalyptic number.

12000001212011 is a deficient number, since it is larger than the sum of its proper divisors (12806832541).

12000001212011 is an equidigital number, since it uses as much as digits as its factorization.

12000001212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12806832540.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12000001212011 its reverse (11021210000021), we get a palindrome (23021211212032).

The spelling of 12000001212011 in words is "twelve trillion, one million, two hundred twelve thousand, eleven".