201202211121212 has 48 divisors (see below), whose sum is σ = 409804351864320. Its totient is φ = 84652604891712.

The previous prime is 201202211121211. The next prime is 201202211121229. The reversal of 201202211121212 is 212121112202102.

201202211121212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201202211121211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182471912 + ... + 183571247.

It is an arithmetic number, because the mean of its divisors is an integer number (8537590663840).

Almost surely, 2^{201202211121212} is an apocalyptic number.

It is an amenable number.

201202211121212 is an abundant number, since it is smaller than the sum of its proper divisors (208602140743108).

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

201202211121212 is a wasteful number, since it uses less digits than its factorization.

201202211121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366043530 (or 366043528 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 201202211121212 its reverse (212121112202102), we get a palindrome (413323323323314).

The spelling of 201202211121212 in words is "two hundred one trillion, two hundred two billion, two hundred eleven million, one hundred twenty-one thousand, two hundred twelve".