120312220020 has 48 divisors (see below), whose sum is σ = 336903161280. Its totient is φ = 32080502016.

The previous prime is 120312220009. The next prime is 120312220027. The reversal of 120312220020 is 20022213021.

It is a happy number.

120312220020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×120312220020² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120312220027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673311 + ... + 833049.

It is an arithmetic number, because the mean of its divisors is an integer number (7018815860).

Almost surely, 2^120312220020 is an apocalyptic number.

120312220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120312220020 is an abundant number, since it is smaller than the sum of its proper divisors (216590941260).

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

120312220020 is a wasteful number, since it uses less digits than its factorization.

120312220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172304 (or 172302 counting only the distinct ones).

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

Adding to 120312220020 its reverse (20022213021), we get a palindrome (140334433041).

The spelling of 120312220020 in words is "one hundred twenty billion, three hundred twelve million, two hundred twenty thousand, twenty".