12001332032221 has 8 divisors (see below), whose sum is σ = 13726950051584. Its totient is φ = 10278499516560.

The previous prime is 12001332032201. The next prime is 12001332032237. The reversal of 12001332032221 is 12223023310021.

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 12001332032221 - 2¹¹ = 12001332030173 is a prime.

It is a super-2 number, since 2×12001332032221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12001332032192 and 12001332032201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001332032201) 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, 696366690 + ... + 696383923.

It is an arithmetic number, because the mean of its divisors is an integer number (1715868756448).

Almost surely, 2^{12001332032221} is an apocalyptic number.

It is an amenable number.

12001332032221 is a deficient number, since it is larger than the sum of its proper divisors (1725618019363).

12001332032221 is a wasteful number, since it uses less digits than its factorization.

12001332032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392751851.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12001332032221 its reverse (12223023310021), we get a palindrome (24224355342242).

The spelling of 12001332032221 in words is "twelve trillion, one billion, three hundred thirty-two million, thirty-two thousand, two hundred twenty-one".