12222101221021 has 8 divisors (see below), whose sum is σ = 12531677191488. Its totient is φ = 11913071724000.

The previous prime is 12222101220971. The next prime is 12222101221069. The reversal of 12222101221021 is 12012210122221.

12222101221021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12222101221021 - 2⁹ = 12222101220509 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 12222101221021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222101222021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136573065 + ... + 136662526.

It is an arithmetic number, because the mean of its divisors is an integer number (1566459648936).

Almost surely, 2^{12222101221021} is an apocalyptic number.

It is an amenable number.

12222101221021 is a deficient number, since it is larger than the sum of its proper divisors (309575970467).

12222101221021 is a wasteful number, since it uses less digits than its factorization.

12222101221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273236723.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12222101221021 its reverse (12012210122221), we get a palindrome (24234311343242).

The spelling of 12222101221021 in words is "twelve trillion, two hundred twenty-two billion, one hundred one million, two hundred twenty-one thousand, twenty-one".