120020021200 has 60 divisors (see below), whose sum is σ = 292651869280. Its totient is φ = 47291460480.

The previous prime is 120020021189. The next prime is 120020021207. The reversal of 120020021200 is 2120020021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020021207) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2212380 + ... + 2265979.

Almost surely, 2^120020021200 is an apocalyptic number.

120020021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120020021200 is an abundant number, since it is smaller than the sum of its proper divisors (172631848080).

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

120020021200 is a wasteful number, since it uses less digits than its factorization.

120020021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4478444 (or 4478433 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 120020021200 its reverse (2120020021), we get a palindrome (122140041221).

The spelling of 120020021200 in words is "one hundred twenty billion, twenty million, twenty-one thousand, two hundred".