200121140 has 24 divisors (see below), whose sum is σ = 430029600. Its totient is φ = 78186528.

The previous prime is 200121113. The next prime is 200121169. The reversal of 200121140 is 41121002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115490 + ... + 117209.

It is an arithmetic number, because the mean of its divisors is an integer number (17917900).

Almost surely, 2^200121140 is an apocalyptic number.

200121140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200121140 is an abundant number, since it is smaller than the sum of its proper divisors (229908460).

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

200121140 is a wasteful number, since it uses less digits than its factorization.

200121140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232751 (or 232749 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 200121140 is about 14146.4179211559. The cubic root of 200121140 is about 584.9215956482.

Adding to 200121140 its reverse (41121002), we get a palindrome (241242142).

The spelling of 200121140 in words is "two hundred million, one hundred twenty-one thousand, one hundred forty".