120021202120 has 32 divisors (see below), whose sum is σ = 271123614720. Its totient is φ = 47817208000.

The previous prime is 120021202097. The next prime is 120021202159. The reversal of 120021202120 is 21202120021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 120021202120.

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 7 ways as a sum of consecutive naturals, for example, 5967112 + ... + 5987191.

It is an arithmetic number, because the mean of its divisors is an integer number (8472612960).

Almost surely, 2^120021202120 is an apocalyptic number.

120021202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021202120 is an abundant number, since it is smaller than the sum of its proper divisors (151102412600).

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

120021202120 is a wasteful number, since it uses less digits than its factorization.

120021202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11954565 (or 11954561 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120021202120 its reverse (21202120021), we get a palindrome (141223322141).

The spelling of 120021202120 in words is "one hundred twenty billion, twenty-one million, two hundred two thousand, one hundred twenty".