200311212 has 24 divisors (see below), whose sum is σ = 482470912. Its totient is φ = 64616400.

The previous prime is 200311159. The next prime is 200311213. The reversal of 200311212 is 212113002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (200311213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268864 + ... + 269607.

Almost surely, 2^200311212 is an apocalyptic number.

It is an amenable number.

200311212 is an abundant number, since it is smaller than the sum of its proper divisors (282159700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200311212 is a wasteful number, since it uses less digits than its factorization.

200311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538509 (or 538507 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 200311212 is about 14153.1343525030. The cubic root of 200311212 is about 585.1067202481.

Adding to 200311212 its reverse (212113002), we get a palindrome (412424214).

The spelling of 200311212 in words is "two hundred million, three hundred eleven thousand, two hundred twelve".