201122121110212 has 24 divisors (see below), whose sum is σ = 352487441359872. Its totient is φ = 100411500230400.

The previous prime is 201122121110203. The next prime is 201122121110219. The reversal of 201122121110212 is 212011121221102.

It is a happy number.

It is a super-3 number, since 3×201122121110212³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 201122121110212.

It is not an unprimeable number, because it can be changed into a prime (201122121110219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918037 + ... + 20077027.

It is an arithmetic number, because the mean of its divisors is an integer number (14686976723328).

Almost surely, 2^{201122121110212} is an apocalyptic number.

It is an amenable number.

201122121110212 is a deficient number, since it is larger than the sum of its proper divisors (151365320249660).

201122121110212 is a wasteful number, since it uses less digits than its factorization.

201122121110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19162899 (or 19162897 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 201122121110212 its reverse (212011121221102), we get a palindrome (413133242331314).

The spelling of 201122121110212 in words is "two hundred one trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred ten thousand, two hundred twelve".