201226566 has 16 divisors (see below), whose sum is σ = 403088688. Its totient is φ = 66969600.

The previous prime is 201226513. The next prime is 201226577. The reversal of 201226566 is 665622102.

201226566 is digitally balanced in base 3, 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 7 ways as a sum of consecutive naturals, for example, 22315 + ... + 30006.

It is an arithmetic number, because the mean of its divisors is an integer number (25193043).

Almost surely, 2^201226566 is an apocalyptic number.

201226566 is an abundant number, since it is smaller than the sum of its proper divisors (201862122).

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

201226566 is a wasteful number, since it uses less digits than its factorization.

201226566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52967.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 201226566 is about 14185.4349950927. The cubic root of 201226566 is about 585.9966122492.

Adding to 201226566 its reverse (665622102), we get a palindrome (866848668).

The spelling of 201226566 in words is "two hundred one million, two hundred twenty-six thousand, five hundred sixty-six".