120021000302220 has 96 divisors (see below), whose sum is σ = 344385083868672. Its totient is φ = 31214832703488.

The previous prime is 120021000302213. The next prime is 120021000302221. The reversal of 120021000302220 is 22203000120021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120021000302220.

It is not an unprimeable number, because it can be changed into a prime (120021000302221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32825152 + ... + 36297831.

It is an arithmetic number, because the mean of its divisors is an integer number (3587344623632).

Almost surely, 2^{120021000302220} is an apocalyptic number.

120021000302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021000302220 is an abundant number, since it is smaller than the sum of its proper divisors (224364083566452).

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

120021000302220 is a wasteful number, since it uses less digits than its factorization.

120021000302220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69123711 (or 69123709 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 120021000302220 its reverse (22203000120021), we get a palindrome (142224000422241).

The spelling of 120021000302220 in words is "one hundred twenty trillion, twenty-one billion, three hundred two thousand, two hundred twenty".