355220120 has 32 divisors (see below), whose sum is σ = 812797200. Its totient is φ = 139678848.

The previous prime is 355220113. The next prime is 355220137. The reversal of 355220120 is 21022553.

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 = 355220092 and 355220101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72899 + ... + 77618.

Almost surely, 2^355220120 is an apocalyptic number.

It is an amenable number.

355220120 is an abundant number, since it is smaller than the sum of its proper divisors (457577080).

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

355220120 is a wasteful number, since it uses less digits than its factorization.

355220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150587 (or 150583 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 355220120 is about 18847.2841544876. The cubic root of 355220120 is about 708.2161926089.

Adding to 355220120 its reverse (21022553), we get a palindrome (376242673).

The spelling of 355220120 in words is "three hundred fifty-five million, two hundred twenty thousand, one hundred twenty".