12121222001222 has 8 divisors (see below), whose sum is σ = 18361851150672. Its totient is φ = 6000604951000.

The previous prime is 12121222001201. The next prime is 12121222001257. The reversal of 12121222001222 is 22210022212121.

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 = 12121222001194 and 12121222001203.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 30003024554 + ... + 30003024957.

It is an arithmetic number, because the mean of its divisors is an integer number (2295231393834).

Almost surely, 2^{12121222001222} is an apocalyptic number.

12121222001222 is a deficient number, since it is larger than the sum of its proper divisors (6240629149450).

12121222001222 is a wasteful number, since it uses less digits than its factorization.

12121222001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60006049614.

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

Adding to 12121222001222 its reverse (22210022212121), we get a palindrome (34331244213343).

The spelling of 12121222001222 in words is "twelve trillion, one hundred twenty-one billion, two hundred twenty-two million, one thousand, two hundred twenty-two".