201120856225 has 27 divisors (see below), whose sum is σ = 251083457067. Its totient is φ = 159811399680.

The previous prime is 201120856177. The next prime is 201120856247. The reversal of 201120856225 is 522658021102.

The square root of 201120856225 is 448465.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 108513889 + 201012342336 = 10417^2 + 448344^2 .

It is not a de Polignac number, because 201120856225 - 2¹⁷ = 201120725153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 576277351 + ... + 576277699.

Almost surely, 2^201120856225 is an apocalyptic number.

201120856225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

201120856225 is the 448465-th square number.

201120856225 is the 224233-rd centered octagonal number.

It is an amenable number.

201120856225 is a deficient number, since it is larger than the sum of its proper divisors (49962600842).

201120856225 is an frugal number, since it uses more digits than its factorization.

201120856225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

Adding to 201120856225 its reverse (522658021102), we get a palindrome (723778877327).

The spelling of 201120856225 in words is "two hundred one billion, one hundred twenty million, eight hundred fifty-six thousand, two hundred twenty-five".