201225606 has 32 divisors (see below), whose sum is σ = 417795840. Its totient is φ = 64534176.

The previous prime is 201225587. The next prime is 201225613. The reversal of 201225606 is 606522102.

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, 51535 + ... + 55301.

It is an arithmetic number, because the mean of its divisors is an integer number (13056120).

Almost surely, 2^201225606 is an apocalyptic number.

201225606 is an abundant number, since it is smaller than the sum of its proper divisors (216570234).

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

201225606 is a wasteful number, since it uses less digits than its factorization.

201225606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 201225606 is about 14185.4011575281. The cubic root of 201225606 is about 585.9956803682.

Adding to 201225606 its reverse (606522102), we get a palindrome (807747708).

The spelling of 201225606 in words is "two hundred one million, two hundred twenty-five thousand, six hundred six".