12002201011221 has 8 divisors (see below), whose sum is σ = 16005474452064. Its totient is φ = 8000197455600.

The previous prime is 12002201011183. The next prime is 12002201011249. The reversal of 12002201011221 is 12211010220021.

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

It is not a de Polignac number, because 12002201011221 - 2²³ = 12002192622613 is a prime.

It is a super-2 number, since 2×12002201011221² (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 12002201011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002201011291) 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, 317449251 + ... + 317487056.

It is an arithmetic number, because the mean of its divisors is an integer number (2000684306508).

Almost surely, 2^{12002201011221} is an apocalyptic number.

It is an amenable number.

12002201011221 is a deficient number, since it is larger than the sum of its proper divisors (4003273440843).

12002201011221 is an equidigital number, since it uses as much as digits as its factorization.

12002201011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634942611.

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

Adding to 12002201011221 its reverse (12211010220021), we get a palindrome (24213211231242).

The spelling of 12002201011221 in words is "twelve trillion, two billion, two hundred one million, eleven thousand, two hundred twenty-one".