120203220 has 24 divisors (see below), whose sum is σ = 336569184. Its totient is φ = 32054176.

The previous prime is 120203203. The next prime is 120203233. The reversal of 120203220 is 22302021.

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 = 120203196 and 120203205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001634 + ... + 1001753.

It is an arithmetic number, because the mean of its divisors is an integer number (14023716).

Almost surely, 2^120203220 is an apocalyptic number.

120203220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120203220 is an abundant number, since it is smaller than the sum of its proper divisors (216365964).

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

120203220 is a wasteful number, since it uses less digits than its factorization.

120203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003399 (or 2003397 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 120203220 is about 10963.7229078448. The cubic root of 120203220 is about 493.5206931802.

Adding to 120203220 its reverse (22302021), we get a palindrome (142505241).

The spelling of 120203220 in words is "one hundred twenty million, two hundred three thousand, two hundred twenty".