12221201112001 has 24 divisors (see below), whose sum is σ = 14602253267840. Its totient is φ = 10018838180736.

The previous prime is 12221201111989. The next prime is 12221201112053. The reversal of 12221201112001 is 10021110212221.

It is not a de Polignac number, because 12221201112001 - 2³³ = 12212611177409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221201122001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37010041 + ... + 37338793.

Almost surely, 2^{12221201112001} is an apocalyptic number.

It is an amenable number.

12221201112001 is a deficient number, since it is larger than the sum of its proper divisors (2381052155839).

12221201112001 is a wasteful number, since it uses less digits than its factorization.

12221201112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338845 (or 338822 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12221201112001 its reverse (10021110212221), we get a palindrome (22242311324222).

The spelling of 12221201112001 in words is "twelve trillion, two hundred twenty-one billion, two hundred one million, one hundred twelve thousand, one".