201225105 has 48 divisors (see below), whose sum is σ = 373464000. Its totient is φ = 99923328.

The previous prime is 201225097. The next prime is 201225133. The reversal of 201225105 is 501522102.

It is not a de Polignac number, because 201225105 - 2³ = 201225097 is a prime.

It is a super-2 number, since 2×201225105² = 80983085764522050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48451 + ... + 52439.

It is an arithmetic number, because the mean of its divisors is an integer number (7780500).

Almost surely, 2^201225105 is an apocalyptic number.

It is an amenable number.

201225105 is a deficient number, since it is larger than the sum of its proper divisors (172238895).

201225105 is a wasteful number, since it uses less digits than its factorization.

201225105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078 (or 4075 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 201225105 is about 14185.3834985171. The cubic root of 201225105 is about 585.9951940417.

Adding to 201225105 its reverse (501522102), we get a palindrome (702747207).

The spelling of 201225105 in words is "two hundred one million, two hundred twenty-five thousand, one hundred five".