12200010211221 has 96 divisors (see below), whose sum is σ = 19621088732160. Its totient is φ = 6716112076800.

The previous prime is 12200010211219. The next prime is 12200010211231. The reversal of 12200010211221 is 12211201000221.

It is not a de Polignac number, because 12200010211221 - 2¹ = 12200010211219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12200010211221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200010211231) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3406870651 + ... + 3406874231.

It is an arithmetic number, because the mean of its divisors is an integer number (204386340960).

Almost surely, 2^{12200010211221} is an apocalyptic number.

It is an amenable number.

12200010211221 is a deficient number, since it is larger than the sum of its proper divisors (7421078520939).

12200010211221 is a wasteful number, since it uses less digits than its factorization.

12200010211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6795 (or 6788 counting only the distinct ones).

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

Adding to 12200010211221 its reverse (12211201000221), we get a palindrome (24411211211442).

The spelling of 12200010211221 in words is "twelve trillion, two hundred billion, ten million, two hundred eleven thousand, two hundred twenty-one".