200121332 has 6 divisors (see below), whose sum is σ = 350212338. Its totient is φ = 100060664.

The previous prime is 200121329. The next prime is 200121349. The reversal of 200121332 is 233121002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 169937296 + 30184036 = 13036^2 + 5494^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25015163 + ... + 25015170.

It is an arithmetic number, because the mean of its divisors is an integer number (58368723).

Almost surely, 2^200121332 is an apocalyptic number.

It is an amenable number.

200121332 is a deficient number, since it is larger than the sum of its proper divisors (150091006).

200121332 is a wasteful number, since it uses less digits than its factorization.

200121332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50030337 (or 50030335 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 200121332 is about 14146.4247073245. The cubic root of 200121332 is about 584.9217827097.

Adding to 200121332 its reverse (233121002), we get a palindrome (433242334).

The spelling of 200121332 in words is "two hundred million, one hundred twenty-one thousand, three hundred thirty-two".