12021101033321 has 4 divisors (see below), whose sum is σ = 12300661522512. Its totient is φ = 11741540544132.

The previous prime is 12021101033309. The next prime is 12021101033353. The reversal of 12021101033321 is 12333010112021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12021101033321 - 2³⁸ = 11746223126377 is a prime.

It is a super-2 number, since 2×12021101033321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12021101033293 and 12021101033302.

It is not an unprimeable number, because it can be changed into a prime (12021101033521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139780244531 + ... + 139780244616.

It is an arithmetic number, because the mean of its divisors is an integer number (3075165380628).

Almost surely, 2^{12021101033321} is an apocalyptic number.

It is an amenable number.

12021101033321 is a deficient number, since it is larger than the sum of its proper divisors (279560489191).

12021101033321 is an equidigital number, since it uses as much as digits as its factorization.

12021101033321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279560489190.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12021101033321 its reverse (12333010112021), we get a palindrome (24354111145342).

The spelling of 12021101033321 in words is "twelve trillion, twenty-one billion, one hundred one million, thirty-three thousand, three hundred twenty-one".