120042220 has 12 divisors (see below), whose sum is σ = 252088704. Its totient is φ = 48016880.

The previous prime is 120042211. The next prime is 120042257. The reversal of 120042220 is 22240021.

It is a self number, because there is not a number n which added to its sum of digits gives 120042220.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3001036 + ... + 3001075.

It is an arithmetic number, because the mean of its divisors is an integer number (21007392).

Almost surely, 2^120042220 is an apocalyptic number.

120042220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120042220 is an abundant number, since it is smaller than the sum of its proper divisors (132046484).

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

120042220 is a wasteful number, since it uses less digits than its factorization.

120042220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6002120 (or 6002118 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 120042220 is about 10956.3780511627. The cubic root of 120042220 is about 493.3002544576.

Adding to 120042220 its reverse (22240021), we get a palindrome (142282241).

The spelling of 120042220 in words is "one hundred twenty million, forty-two thousand, two hundred twenty".