201002212121212 has 12 divisors (see below), whose sum is σ = 351874046795040. Its totient is φ = 100466770179776.

The previous prime is 201002212121209. The next prime is 201002212121257. The reversal of 201002212121212 is 212121212200102.

It is a self number, because there is not a number n which added to its sum of digits gives 201002212121212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8583957037 + ... + 8583980452.

It is an arithmetic number, because the mean of its divisors is an integer number (29322837232920).

Almost surely, 2^{201002212121212} is an apocalyptic number.

It is an amenable number.

201002212121212 is a deficient number, since it is larger than the sum of its proper divisors (150871834673828).

201002212121212 is a wasteful number, since it uses less digits than its factorization.

201002212121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17167940420 (or 17167940418 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201002212121212 its reverse (212121212200102), we get a palindrome (413123424321314).

The spelling of 201002212121212 in words is "two hundred one trillion, two billion, two hundred twelve million, one hundred twenty-one thousand, two hundred twelve".