200121232 has 10 divisors (see below), whose sum is σ = 387734918. Its totient is φ = 100060608.

The previous prime is 200121227. The next prime is 200121241. The reversal of 200121232 is 232121002.

It can be written as a sum of positive squares in only one way, i.e., 182682256 + 17438976 = 13516^2 + 4176^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6253773 + ... + 6253804.

Almost surely, 2^200121232 is an apocalyptic number.

It is an amenable number.

200121232 is a deficient number, since it is larger than the sum of its proper divisors (187613686).

200121232 is a wasteful number, since it uses less digits than its factorization.

200121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12507585 (or 12507579 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 200121232 is about 14146.4211728621. The cubic root of 200121232 is about 584.9216852818.

Adding to 200121232 its reverse (232121002), we get a palindrome (432242234).

The spelling of 200121232 in words is "two hundred million, one hundred twenty-one thousand, two hundred thirty-two".