12221000422 has 8 divisors (see below), whose sum is σ = 18332501616. Its totient is φ = 6110166552.

The previous prime is 12221000417. The next prime is 12221000447. The reversal of 12221000422 is 22400012221.

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

It is a junction number, because it is equal to n+sod(n) for n = 12221000396 and 12221000405.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 118213 + ... + 196000.

It is an arithmetic number, because the mean of its divisors is an integer number (2291562702).

Almost surely, 2^12221000422 is an apocalyptic number.

12221000422 is a deficient number, since it is larger than the sum of its proper divisors (6111501194).

12221000422 is a wasteful number, since it uses less digits than its factorization.

12221000422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333662.

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

Adding to 12221000422 its reverse (22400012221), we get a palindrome (34621012643).

The spelling of 12221000422 in words is "twelve billion, two hundred twenty-one million, four hundred twenty-two", and thus it is an aban number.