12021001102221 has 16 divisors (see below), whose sum is σ = 16033282959168. Its totient is φ = 8011360448000.

The previous prime is 12021001102219. The next prime is 12021001102237. The reversal of 12021001102221 is 12220110012021.

12021001102221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12021001102221 - 2¹ = 12021001102219 is a prime.

It is a super-2 number, since 2×12021001102221² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12021001102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021001102921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117893341 + ... + 117995261.

It is an arithmetic number, because the mean of its divisors is an integer number (1002080184948).

Almost surely, 2^{12021001102221} is an apocalyptic number.

It is an amenable number.

12021001102221 is a deficient number, since it is larger than the sum of its proper divisors (4012281856947).

12021001102221 is a wasteful number, since it uses less digits than its factorization.

12021001102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114492.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12021001102221 its reverse (12220110012021), we get a palindrome (24241111114242).

The spelling of 12021001102221 in words is "twelve trillion, twenty-one billion, one million, one hundred two thousand, two hundred twenty-one".