12222001221001 has 8 divisors (see below), whose sum is σ = 14358714721344. Its totient is φ = 10256224800720.

The previous prime is 12222001220971. The next prime is 12222001221041. The reversal of 12222001221001 is 10012210022221.

It is a happy number.

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 12222001221001 - 2⁵ = 12222001220969 is a prime.

It is a super-2 number, since 2×12222001221001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222001221041) 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, 42734269861 + ... + 42734270146.

It is an arithmetic number, because the mean of its divisors is an integer number (1794839340168).

Almost surely, 2^{12222001221001} is an apocalyptic number.

12222001221001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12222001221001 is a deficient number, since it is larger than the sum of its proper divisors (2136713500343).

12222001221001 is a wasteful number, since it uses less digits than its factorization.

12222001221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85468540031.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12222001221001 its reverse (10012210022221), we get a palindrome (22234211243222).

The spelling of 12222001221001 in words is "twelve trillion, two hundred twenty-two billion, one million, two hundred twenty-one thousand, one".