200123220 has 48 divisors (see below), whose sum is σ = 611287488. Its totient is φ = 48514560.

The previous prime is 200123191. The next prime is 200123233. The reversal of 200123220 is 22321002.

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 = 200123196 and 200123205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150949 + ... + 152268.

It is an arithmetic number, because the mean of its divisors is an integer number (12735156).

Almost surely, 2^200123220 is an apocalyptic number.

200123220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200123220 is an abundant number, since it is smaller than the sum of its proper divisors (411164268).

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

200123220 is a wasteful number, since it uses less digits than its factorization.

200123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303240 (or 303238 counting only the distinct ones).

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

The square root of 200123220 is about 14146.4914378089. The cubic root of 200123220 is about 584.9236221419.

Adding to 200123220 its reverse (22321002), we get a palindrome (222444222).

It can be divided in two parts, 20012 and 3220, that added together give a palindrome (23232).

The spelling of 200123220 in words is "two hundred million, one hundred twenty-three thousand, two hundred twenty".