12222001221211 has 8 divisors (see below), whose sum is σ = 12886048404800. Its totient is φ = 11560032433800.

The previous prime is 12222001221187. The next prime is 12222001221233. The reversal of 12222001221211 is 11212210022221.

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 12222001221211 - 2²⁹ = 12221464350299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222001221271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519586965 + ... + 519610486.

It is an arithmetic number, because the mean of its divisors is an integer number (1610756050600).

Almost surely, 2^{12222001221211} is an apocalyptic number.

12222001221211 is a deficient number, since it is larger than the sum of its proper divisors (664047183589).

12222001221211 is a wasteful number, since it uses less digits than its factorization.

12222001221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039198089.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12222001221211 its reverse (11212210022221), we get a palindrome (23434211243432).

The spelling of 12222001221211 in words is "twelve trillion, two hundred twenty-two billion, one million, two hundred twenty-one thousand, two hundred eleven".