120312412220 has 96 divisors (see below), whose sum is σ = 339230578176. Its totient is φ = 34615353600.

The previous prime is 120312412219. The next prime is 120312412271. The reversal of 120312412220 is 22214213021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 120312412192 and 120312412201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2984786 + ... + 3024825.

It is an arithmetic number, because the mean of its divisors is an integer number (3533651856).

Almost surely, 2^120312412220 is an apocalyptic number.

120312412220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120312412220 is an abundant number, since it is smaller than the sum of its proper divisors (218918165956).

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

120312412220 is a wasteful number, since it uses less digits than its factorization.

120312412220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6009651 (or 6009649 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 120312412220 its reverse (22214213021), we get a palindrome (142526625241).

The spelling of 120312412220 in words is "one hundred twenty billion, three hundred twelve million, four hundred twelve thousand, two hundred twenty".