12020001032221 has 8 divisors (see below), whose sum is σ = 14793847424384. Its totient is φ = 9510330486960.

The previous prime is 12020001032219. The next prime is 12020001032239. The reversal of 12020001032221 is 12223010002021.

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 12020001032221 - 2¹ = 12020001032219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020001032195 and 12020001032204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020001032021) 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, 66043961625 + ... + 66043961806.

It is an arithmetic number, because the mean of its divisors is an integer number (1849230928048).

Almost surely, 2^{12020001032221} is an apocalyptic number.

It is an amenable number.

12020001032221 is a deficient number, since it is larger than the sum of its proper divisors (2773846392163).

12020001032221 is a wasteful number, since it uses less digits than its factorization.

12020001032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132087923451.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12020001032221 its reverse (12223010002021), we get a palindrome (24243011034242).

The spelling of 12020001032221 in words is "twelve trillion, twenty billion, one million, thirty-two thousand, two hundred twenty-one".