12000202022221 has 16 divisors (see below), whose sum is σ = 13806089544960. Its totient is φ = 10217215123200.

The previous prime is 12000202022201. The next prime is 12000202022231. The reversal of 12000202022221 is 12222020200021.

It is a cyclic number.

It is not a de Polignac number, because 12000202022221 - 2²⁵ = 12000168467789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000202022195 and 12000202022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000202022201) 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, 19823925 + ... + 20420293.

It is an arithmetic number, because the mean of its divisors is an integer number (862880596560).

Almost surely, 2^{12000202022221} is an apocalyptic number.

It is an amenable number.

12000202022221 is a deficient number, since it is larger than the sum of its proper divisors (1805887522739).

12000202022221 is a wasteful number, since it uses less digits than its factorization.

12000202022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615564.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12000202022221 its reverse (12222020200021), we get a palindrome (24222222222242).

The spelling of 12000202022221 in words is "twelve trillion, two hundred two million, twenty-two thousand, two hundred twenty-one".