200012122 has 4 divisors (see below), whose sum is σ = 300018186. Its totient is φ = 100006060.

The previous prime is 200012083. The next prime is 200012129. The reversal of 200012122 is 221210002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 107101801 + 92910321 = 10349^2 + 9639^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200012099 and 200012108.

It is not an unprimeable number, because it can be changed into a prime (200012129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50003029 + ... + 50003032.

Almost surely, 2^200012122 is an apocalyptic number.

200012122 is a deficient number, since it is larger than the sum of its proper divisors (100006064).

200012122 is a wasteful number, since it uses less digits than its factorization.

200012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100006063.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 200012122 is about 14142.5641946572. The cubic root of 200012122 is about 584.8153623849.

Adding to 200012122 its reverse (221210002), we get a palindrome (421222124).

The spelling of 200012122 in words is "two hundred million, twelve thousand, one hundred twenty-two".