200121130 has 16 divisors (see below), whose sum is σ = 392965344. Its totient is φ = 72771280.

The previous prime is 200121113. The next prime is 200121169. The reversal of 200121130 is 31121002.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 909532 + ... + 909751.

It is an arithmetic number, because the mean of its divisors is an integer number (24560334).

Almost surely, 2^200121130 is an apocalyptic number.

200121130 is a deficient number, since it is larger than the sum of its proper divisors (192844214).

200121130 is a wasteful number, since it uses less digits than its factorization.

200121130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819301.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 200121130 is about 14146.4175677095. The cubic root of 200121130 is about 584.9215859054.

Adding to 200121130 its reverse (31121002), we get a palindrome (231242132).

The spelling of 200121130 in words is "two hundred million, one hundred twenty-one thousand, one hundred thirty".