201226281099 has 16 divisors (see below), whose sum is σ = 268761292800. Its totient is φ = 133921247616.

The previous prime is 201226281077. The next prime is 201226281103. The reversal of 201226281099 is 990182622102.

It is a happy number.

It is not a de Polignac number, because 201226281099 - 2⁷ = 201226280971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201226281099.

It is not an unprimeable number, because it can be changed into a prime (201226281049) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4562947 + ... + 4606835.

It is an arithmetic number, because the mean of its divisors is an integer number (16797580800).

Almost surely, 2^201226281099 is an apocalyptic number.

201226281099 is a deficient number, since it is larger than the sum of its proper divisors (67535011701).

201226281099 is a wasteful number, since it uses less digits than its factorization.

201226281099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46474.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 201226281099 in words is "two hundred one billion, two hundred twenty-six million, two hundred eighty-one thousand, ninety-nine".