120131221002 has 128 divisors (see below), whose sum is σ = 264881111040. Its totient is φ = 36100753920.

The previous prime is 120131220977. The next prime is 120131221037. The reversal of 120131221002 is 200122131021.

120131221002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 286709149 + ... + 286709567.

It is an arithmetic number, because the mean of its divisors is an integer number (2069383680).

Almost surely, 2^120131221002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120131221002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132440555520).

120131221002 is an abundant number, since it is smaller than the sum of its proper divisors (144749890038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120131221002 is a wasteful number, since it uses less digits than its factorization.

120131221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948.

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

Adding to 120131221002 its reverse (200122131021), we get a palindrome (320253352023).

The spelling of 120131221002 in words is "one hundred twenty billion, one hundred thirty-one million, two hundred twenty-one thousand, two".