201122120220012 has 96 divisors (see below), whose sum is σ = 540262836825600. Its totient is φ = 64626376046400.

The previous prime is 201122120219971. The next prime is 201122120220019. The reversal of 201122120220012 is 210022021221102.

It is a happy number.

201122120220012 is a `hidden beast` number, since 20 + 11 + 221 + 202 + 200 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (201122120220019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48907414 + ... + 52859997.

It is an arithmetic number, because the mean of its divisors is an integer number (5627737883600).

Almost surely, 2^{201122120220012} is an apocalyptic number.

It is an amenable number.

201122120220012 is an abundant number, since it is smaller than the sum of its proper divisors (339140716605588).

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

201122120220012 is a wasteful number, since it uses less digits than its factorization.

201122120220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101768084 (or 101768076 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201122120220012 its reverse (210022021221102), we get a palindrome (411144141441114).

The spelling of 201122120220012 in words is "two hundred one trillion, one hundred twenty-two billion, one hundred twenty million, two hundred twenty thousand, twelve".