12012100020011 has 32 divisors (see below), whose sum is σ = 14862674534400. Its totient is φ = 9453589499520.

The previous prime is 12012100020007. The next prime is 12012100020031. The reversal of 12012100020011 is 11002000121021.

It is a cyclic number.

It is not a de Polignac number, because 12012100020011 - 2² = 12012100020007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12012100019974 and 12012100020001.

It is not an unprimeable number, because it can be changed into a prime (12012100020031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384260900 + ... + 384292158.

It is an arithmetic number, because the mean of its divisors is an integer number (464458579200).

Almost surely, 2^{12012100020011} is an apocalyptic number.

12012100020011 is a deficient number, since it is larger than the sum of its proper divisors (2850574514389).

12012100020011 is a wasteful number, since it uses less digits than its factorization.

12012100020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53579.

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

Adding to 12012100020011 its reverse (11002000121021), we get a palindrome (23014100141032).

The spelling of 12012100020011 in words is "twelve trillion, twelve billion, one hundred million, twenty thousand, eleven".