200912120 has 32 divisors (see below), whose sum is σ = 478645200. Its totient is φ = 75637248.

The previous prime is 200912119. The next prime is 200912149. The reversal of 200912120 is 21219002.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 147050 + ... + 148409.

Almost surely, 2^200912120 is an apocalyptic number.

200912120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200912120 is an abundant number, since it is smaller than the sum of its proper divisors (277733080).

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

200912120 is a wasteful number, since it uses less digits than its factorization.

200912120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295487 (or 295483 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 200912120 is about 14174.3472512846. The cubic root of 200912120 is about 585.6912179238.

The spelling of 200912120 in words is "two hundred million, nine hundred twelve thousand, one hundred twenty".