12000011002221 has 16 divisors (see below), whose sum is σ = 17627378902848. Its totient is φ = 7200726672000.

The previous prime is 12000011002219. The next prime is 12000011002223. The reversal of 12000011002221 is 12220011000021.

It is an interprime number because it is at equal distance from previous prime (12000011002219) and next prime (12000011002223).

It is not a de Polignac number, because 12000011002221 - 2¹ = 12000011002219 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12000011002197 and 12000011002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000011002223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1800178336 + ... + 1800185001.

It is an arithmetic number, because the mean of its divisors is an integer number (1101711181428).

Almost surely, 2^{12000011002221} is an apocalyptic number.

12000011002221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12000011002221 is a deficient number, since it is larger than the sum of its proper divisors (5627367900627).

12000011002221 is a wasteful number, since it uses less digits than its factorization.

12000011002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3600363452.

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

Adding to 12000011002221 its reverse (12220011000021), we get a palindrome (24220022002242).

The spelling of 12000011002221 in words is "twelve trillion, eleven million, two thousand, two hundred twenty-one".