120012201321 has 16 divisors (see below), whose sum is σ = 163140759936. Its totient is φ = 78447838976.

The previous prime is 120012201319. The next prime is 120012201391. The reversal of 120012201321 is 123102210021.

It is a cyclic number.

It is not a de Polignac number, because 120012201321 - 2¹ = 120012201319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120012201321.

It is not an unprimeable number, because it can be changed into a prime (120012201391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3916 + ... + 489938.

It is an arithmetic number, because the mean of its divisors is an integer number (10196297496).

Almost surely, 2^120012201321 is an apocalyptic number.

It is an amenable number.

120012201321 is a deficient number, since it is larger than the sum of its proper divisors (43128558615).

120012201321 is a wasteful number, since it uses less digits than its factorization.

120012201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487632.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 120012201321 its reverse (123102210021), we get a palindrome (243114411342).

The spelling of 120012201321 in words is "one hundred twenty billion, twelve million, two hundred one thousand, three hundred twenty-one".