200121412 has 6 divisors (see below), whose sum is σ = 350212478. Its totient is φ = 100060704.

The previous prime is 200121409. The next prime is 200121421. The reversal of 200121412 is 214121002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 157402116 + 42719296 = 12546^2 + 6536^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200121392 and 200121401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25015173 + ... + 25015180.

Almost surely, 2^200121412 is an apocalyptic number.

It is an amenable number.

200121412 is a deficient number, since it is larger than the sum of its proper divisors (150091066).

200121412 is a wasteful number, since it uses less digits than its factorization.

200121412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50030357 (or 50030355 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 200121412 is about 14146.4275348937. The cubic root of 200121412 is about 584.9218606520.

Adding to 200121412 its reverse (214121002), we get a palindrome (414242414).

The spelling of 200121412 in words is "two hundred million, one hundred twenty-one thousand, four hundred twelve".