12021222221201 has 32 divisors (see below), whose sum is σ = 13045388256000. Its totient is φ = 11041615872000.

The previous prime is 12021222221143. The next prime is 12021222221213. The reversal of 12021222221201 is 10212222212021.

It is a cyclic number.

It is not a de Polignac number, because 12021222221201 - 2¹⁰ = 12021222220177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021222221251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 447721025 + ... + 447747873.

It is an arithmetic number, because the mean of its divisors is an integer number (407668383000).

Almost surely, 2^{12021222221201} is an apocalyptic number.

It is an amenable number.

12021222221201 is a deficient number, since it is larger than the sum of its proper divisors (1024166034799).

12021222221201 is a wasteful number, since it uses less digits than its factorization.

12021222221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32441.

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

Adding to 12021222221201 its reverse (10212222212021), we get a palindrome (22233444433222).

It can be divided in two parts, 1 and 2021222221201, that added together give a palindrome (2021222221202).

The spelling of 12021222221201 in words is "twelve trillion, twenty-one billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred one".