201211012001212 has 6 divisors (see below), whose sum is σ = 352119271002128. Its totient is φ = 100605506000604.

The previous prime is 201211012001171. The next prime is 201211012001323. The reversal of 201211012001212 is 212100210112102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25151376500148 + ... + 25151376500155.

Almost surely, 2^{201211012001212} is an apocalyptic number.

It is an amenable number.

201211012001212 is a deficient number, since it is larger than the sum of its proper divisors (150908259000916).

201211012001212 is a wasteful number, since it uses less digits than its factorization.

201211012001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50302753000307 (or 50302753000305 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201211012001212 its reverse (212100210112102), we get a palindrome (413311222113314).

The spelling of 201211012001212 in words is "two hundred one trillion, two hundred eleven billion, twelve million, one thousand, two hundred twelve".