120303312021220 has 48 divisors (see below), whose sum is σ = 255543914102400. Its totient is φ = 47567907636480.

The previous prime is 120303312021163. The next prime is 120303312021223. The reversal of 120303312021220 is 22120213303021.

It is a junction number, because it is equal to n+sod(n) for n = 120303312021191 and 120303312021200.

It is not an unprimeable number, because it can be changed into a prime (120303312021223) 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, 2382576 + ... + 15693415.

It is an arithmetic number, because the mean of its divisors is an integer number (5323831543800).

Almost surely, 2^{120303312021220} is an apocalyptic number.

120303312021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120303312021220 is an abundant number, since it is smaller than the sum of its proper divisors (135240602081180).

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

120303312021220 is a wasteful number, since it uses less digits than its factorization.

120303312021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18079828 (or 18079826 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 120303312021220 its reverse (22120213303021), we get a palindrome (142423525324241).

The spelling of 120303312021220 in words is "one hundred twenty trillion, three hundred three billion, three hundred twelve million, twenty-one thousand, two hundred twenty".