201201212 has 12 divisors (see below), whose sum is σ = 352253160. Its totient is φ = 100557456.

The previous prime is 201201193. The next prime is 201201251. The reversal of 201201212 is 212102102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201201193 and 201201202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178 + ... + 20094.

It is an arithmetic number, because the mean of its divisors is an integer number (29354430).

Almost surely, 2^201201212 is an apocalyptic number.

It is an amenable number.

201201212 is a deficient number, since it is larger than the sum of its proper divisors (151051948).

201201212 is a wasteful number, since it uses less digits than its factorization.

201201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21580 (or 21578 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 201201212 is about 14184.5413038279. The cubic root of 201201212 is about 585.9719998891.

Adding to 201201212 its reverse (212102102), we get a palindrome (413303314).

The spelling of 201201212 in words is "two hundred one million, two hundred one thousand, two hundred twelve".