12000202122221 has 8 divisors (see below), whose sum is σ = 12112445808000. Its totient is φ = 11887960145248.

The previous prime is 12000202122203. The next prime is 12000202122283. The reversal of 12000202122221 is 12222120200021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12000202122221 - 2²² = 12000197927917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12000202122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000202122121) 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 7 ways as a sum of consecutive naturals, for example, 16987745 + ... + 17680041.

It is an arithmetic number, because the mean of its divisors is an integer number (1514055726000).

Almost surely, 2^{12000202122221} is an apocalyptic number.

It is an amenable number.

12000202122221 is a deficient number, since it is larger than the sum of its proper divisors (112243685779).

12000202122221 is a wasteful number, since it uses less digits than its factorization.

12000202122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854403.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12000202122221 its reverse (12222120200021), we get a palindrome (24222322322242).

The spelling of 12000202122221 in words is "twelve trillion, two hundred two million, one hundred twenty-two thousand, two hundred twenty-one".