12221200212221 has 48 divisors (see below), whose sum is σ = 16704013193280. Its totient is φ = 8789361477120.

The previous prime is 12221200212203. The next prime is 12221200212229.

12221200212221 is nontrivially palindromic in base 10.

12221200212221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12221200212221 - 2¹⁸ = 12221199950077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12221200212193 and 12221200212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221200212229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57414230 + ... + 57626696.

It is an arithmetic number, because the mean of its divisors is an integer number (348000274860).

Almost surely, 2^{12221200212221} is an apocalyptic number.

12221200212221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12221200212221 is a deficient number, since it is larger than the sum of its proper divisors (4482812981059).

12221200212221 is a wasteful number, since it uses less digits than its factorization.

12221200212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220714 (or 220707 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

It can be divided in two parts, 12221200 and 212221, that added together give a palindrome (12433421).

The spelling of 12221200212221 in words is "twelve trillion, two hundred twenty-one billion, two hundred million, two hundred twelve thousand, two hundred twenty-one".