120021321032220 has 48 divisors (see below), whose sum is σ = 336225490892928. Its totient is φ = 31989895894080.

The previous prime is 120021321032183. The next prime is 120021321032251. The reversal of 120021321032220 is 22230123120021.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 493305946 + ... + 493549185.

It is an arithmetic number, because the mean of its divisors is an integer number (7004697726936).

Almost surely, 2^{120021321032220} is an apocalyptic number.

120021321032220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021321032220 is an abundant number, since it is smaller than the sum of its proper divisors (216204169860708).

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

120021321032220 is a wasteful number, since it uses less digits than its factorization.

120021321032220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986857170 (or 986857168 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 120021321032220 its reverse (22230123120021), we get a palindrome (142251444152241).

The spelling of 120021321032220 in words is "one hundred twenty trillion, twenty-one billion, three hundred twenty-one million, thirty-two thousand, two hundred twenty".