12000021220011 has 24 divisors (see below), whose sum is σ = 17632018469520. Its totient is φ = 7254044057920.

The previous prime is 12000021220007. The next prime is 12000021220021. The reversal of 12000021220011 is 11002212000021.

It is not a de Polignac number, because 12000021220011 - 2² = 12000021220007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12000021220021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42349680 + ... + 42632093.

It is an arithmetic number, because the mean of its divisors is an integer number (734667436230).

Almost surely, 2^{12000021220011} is an apocalyptic number.

12000021220011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12000021220011 is a deficient number, since it is larger than the sum of its proper divisors (5631997249509).

12000021220011 is a wasteful number, since it uses less digits than its factorization.

12000021220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84982187 (or 84982176 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12000021220011 its reverse (11002212000021), we get a palindrome (23002233220032).

The spelling of 12000021220011 in words is "twelve trillion, twenty-one million, two hundred twenty thousand, eleven".