201226054212 has 36 divisors (see below), whose sum is σ = 518252012460. Its totient is φ = 65809778112.

The previous prime is 201226054207. The next prime is 201226054231. The reversal of 201226054212 is 212450622102.

201226054212 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 2 + 605 + 42 + 12 = 666.

201226054212 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 131438151936 + 69787902276 = 362544^2 + 264174^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52730287 + ... + 52734102.

It is an arithmetic number, because the mean of its divisors is an integer number (14395889235).

Almost surely, 2^201226054212 is an apocalyptic number.

It is an amenable number.

201226054212 is an abundant number, since it is smaller than the sum of its proper divisors (317025958248).

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

201226054212 is a wasteful number, since it uses less digits than its factorization.

201226054212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105464452 (or 105464447 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 201226054212 its reverse (212450622102), we get a palindrome (413676676314).

The spelling of 201226054212 in words is "two hundred one billion, two hundred twenty-six million, fifty-four thousand, two hundred twelve".