120222320728 has 8 divisors (see below), whose sum is σ = 225416851380. Its totient is φ = 60111160360.

The previous prime is 120222320719. The next prime is 120222320731. The reversal of 120222320728 is 827023222021.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 120222320728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7513895038 + ... + 7513895053.

Almost surely, 2^120222320728 is an apocalyptic number.

It is an amenable number.

120222320728 is a deficient number, since it is larger than the sum of its proper divisors (105194530652).

120222320728 is a wasteful number, since it uses less digits than its factorization.

120222320728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15027790097 (or 15027790093 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

Adding to 120222320728 its reverse (827023222021), we get a palindrome (947245542749).

The spelling of 120222320728 in words is "one hundred twenty billion, two hundred twenty-two million, three hundred twenty thousand, seven hundred twenty-eight".