12212200000221 has 64 divisors (see below), whose sum is σ = 18160556015616. Its totient is φ = 7248913689600.

The previous prime is 12212200000213. The next prime is 12212200000241. The reversal of 12212200000221 is 12200000221221.

It is not a de Polignac number, because 12212200000221 - 2³ = 12212200000213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12212200000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212200000241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1523284005 + ... + 1523292021.

It is an arithmetic number, because the mean of its divisors is an integer number (283758687744).

Almost surely, 2^{12212200000221} is an apocalyptic number.

It is an amenable number.

12212200000221 is a deficient number, since it is larger than the sum of its proper divisors (5948356015395).

12212200000221 is a wasteful number, since it uses less digits than its factorization.

12212200000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12042.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12212200000221 its reverse (12200000221221), we get a palindrome (24412200221442).

The spelling of 12212200000221 in words is "twelve trillion, two hundred twelve billion, two hundred million, two hundred twenty-one", and thus it is an aban number.