201226205133 has 12 divisors (see below), whose sum is σ = 293925918780. Its totient is φ = 132643490496.

The previous prime is 201226205123. The next prime is 201226205161. The reversal of 201226205133 is 331502622102.

It is a happy number.

201226205133 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 2 + 620 + 5 + 1 + 33 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46385529129 + 154840676004 = 215373^2 + 393498^2 .

It is not a de Polignac number, because 201226205133 - 2⁶ = 201226205069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201226205097 and 201226205106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201226205123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125608566 + ... + 125610167.

It is an arithmetic number, because the mean of its divisors is an integer number (24493826565).

Almost surely, 2^201226205133 is an apocalyptic number.

It is an amenable number.

201226205133 is a deficient number, since it is larger than the sum of its proper divisors (92699713647).

201226205133 is a wasteful number, since it uses less digits than its factorization.

201226205133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251218828 (or 251218825 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 201226205133 its reverse (331502622102), we get a palindrome (532728827235).

The spelling of 201226205133 in words is "two hundred one billion, two hundred twenty-six million, two hundred five thousand, one hundred thirty-three".