12202212012221 has 8 divisors (see below), whose sum is σ = 15213147443904. Its totient is φ = 9508217152320.

The previous prime is 12202212012209. The next prime is 12202212012223. The reversal of 12202212012221 is 12221021220221.

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

It is a cyclic number.

It is not a de Polignac number, because 12202212012221 - 2³⁸ = 11927334105277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12202212012193 and 12202212012202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202212012223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79235142860 + ... + 79235143013.

It is an arithmetic number, because the mean of its divisors is an integer number (1901643430488).

Almost surely, 2^{12202212012221} is an apocalyptic number.

12202212012221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12202212012221 is a deficient number, since it is larger than the sum of its proper divisors (3010935431683).

12202212012221 is a wasteful number, since it uses less digits than its factorization.

12202212012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158470285891.

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

Adding to 12202212012221 its reverse (12221021220221), we get a palindrome (24423233232442).

The spelling of 12202212012221 in words is "twelve trillion, two hundred two billion, two hundred twelve million, twelve thousand, two hundred twenty-one".