12001133321221 has 8 divisors (see below), whose sum is σ = 13120544894688. Its totient is φ = 10886454990000.

The previous prime is 12001133321201. The next prime is 12001133321257. The reversal of 12001133321221 is 12212333110021.

12001133321221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12001133321221 - 2⁵ = 12001133321189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12001133321192 and 12001133321201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001133321201) 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, 1183305255 + ... + 1183315396.

It is an arithmetic number, because the mean of its divisors is an integer number (1640068111836).

Almost surely, 2^{12001133321221} is an apocalyptic number.

12001133321221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12001133321221 is a deficient number, since it is larger than the sum of its proper divisors (1119411573467).

12001133321221 is a wasteful number, since it uses less digits than its factorization.

12001133321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366621123.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12001133321221 its reverse (12212333110021), we get a palindrome (24213466431242).

The spelling of 12001133321221 in words is "twelve trillion, one billion, one hundred thirty-three million, three hundred twenty-one thousand, two hundred twenty-one".