201220122122012 has 48 divisors (see below), whose sum is σ = 405930477550080. Its totient is φ = 85491614376000.

The previous prime is 201220122121999. The next prime is 201220122122029. The reversal of 201220122122012 is 210221221022102.

201220122122012 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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46388687 + ... + 50540582.

It is an arithmetic number, because the mean of its divisors is an integer number (8456884948960).

Almost surely, 2^{201220122122012} is an apocalyptic number.

It is an amenable number.

201220122122012 is an abundant number, since it is smaller than the sum of its proper divisors (204710355428068).

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

201220122122012 is a wasteful number, since it uses less digits than its factorization.

201220122122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96929922 (or 96929920 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 201220122122012 its reverse (210221221022102), we get a palindrome (411441343144114).

The spelling of 201220122122012 in words is "two hundred one trillion, two hundred twenty billion, one hundred twenty-two million, one hundred twenty-two thousand, twelve".