120021020220 has 48 divisors (see below), whose sum is σ = 341754779520. Its totient is φ = 31463136576.

The previous prime is 120021020173. The next prime is 120021020227. The reversal of 120021020220 is 22020120021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 120021020196 and 120021020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021020227) 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, 16948582 + ... + 16955661.

It is an arithmetic number, because the mean of its divisors is an integer number (7119891240).

Almost surely, 2^120021020220 is an apocalyptic number.

120021020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021020220 is an abundant number, since it is smaller than the sum of its proper divisors (221733759300).

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

120021020220 is a wasteful number, since it uses less digits than its factorization.

120021020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33904314 (or 33904312 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 120021020220 its reverse (22020120021), we get a palindrome (142041140241).

The spelling of 120021020220 in words is "one hundred twenty billion, twenty-one million, twenty thousand, two hundred twenty".