12212212221201 has 8 divisors (see below), whose sum is σ = 16512286947264. Its totient is φ = 8026806154640.

The previous prime is 12212212221091. The next prime is 12212212221281. The reversal of 12212212221201 is 10212221221221.

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 12212212221201 - 2¹⁷ = 12212212090129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212212221281) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28667164626 + ... + 28667165051.

It is an arithmetic number, because the mean of its divisors is an integer number (2064035868408).

Almost surely, 2^{12212212221201} is an apocalyptic number.

It is an amenable number.

12212212221201 is a deficient number, since it is larger than the sum of its proper divisors (4300074726063).

12212212221201 is an equidigital number, since it uses as much as digits as its factorization.

12212212221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57334329751.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12212212221201 its reverse (10212221221221), we get a palindrome (22424433442422).

The spelling of 12212212221201 in words is "twelve trillion, two hundred twelve billion, two hundred twelve million, two hundred twenty-one thousand, two hundred one".