12010202201221 has 16 divisors (see below), whose sum is σ = 13729769257600. Its totient is φ = 10291591598400.

The previous prime is 12010202201183. The next prime is 12010202201233. The reversal of 12010202201221 is 12210220201021.

It is a happy number.

It is not a de Polignac number, because 12010202201221 - 2⁹ = 12010202200709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12010202201195 and 12010202201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010202201321) 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, 544644646 + ... + 544666696.

It is an arithmetic number, because the mean of its divisors is an integer number (858110578600).

Almost surely, 2^{12010202201221} is an apocalyptic number.

It is an amenable number.

12010202201221 is a deficient number, since it is larger than the sum of its proper divisors (1719567056379).

12010202201221 is a wasteful number, since it uses less digits than its factorization.

12010202201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40204.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12010202201221 its reverse (12210220201021), we get a palindrome (24220422402242).

The spelling of 12010202201221 in words is "twelve trillion, ten billion, two hundred two million, two hundred one thousand, two hundred twenty-one".