12200222221 has 16 divisors (see below), whose sum is σ = 14041843200. Its totient is φ = 10483354800.

The previous prime is 12200222191. The next prime is 12200222233. The reversal of 12200222221 is 12222200221.

12200222221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12200222221 - 2¹³ = 12200214029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12200222195 and 12200222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200222521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25266 + ... + 158236.

It is an arithmetic number, because the mean of its divisors is an integer number (877615200).

Almost surely, 2^12200222221 is an apocalyptic number.

12200222221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12200222221 is a deficient number, since it is larger than the sum of its proper divisors (1841620979).

12200222221 is a wasteful number, since it uses less digits than its factorization.

12200222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133440.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12200222221 its reverse (12222200221), we get a palindrome (24422422442).

The spelling of 12200222221 in words is "twelve billion, two hundred million, two hundred twenty-two thousand, two hundred twenty-one".