212060225 has 12 divisors (see below), whose sum is σ = 283182396. Its totient is φ = 156598080.

The previous prime is 212060221. The next prime is 212060249. The reversal of 212060225 is 522060212.

It can be written as a sum of positive squares in 6 ways, for example, as 6195121 + 205865104 = 2489^2 + 14348^2 .

It is not a de Polignac number, because 212060225 - 2² = 212060221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212060197 and 212060206.

It is not an unprimeable number, because it can be changed into a prime (212060221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325922 + ... + 326571.

It is an arithmetic number, because the mean of its divisors is an integer number (23598533).

Almost surely, 2^212060225 is an apocalyptic number.

212060225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212060225 is a deficient number, since it is larger than the sum of its proper divisors (71122171).

212060225 is a wasteful number, since it uses less digits than its factorization.

212060225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652516 (or 652511 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 212060225 is about 14562.2877666938. The cubic root of 212060225 is about 596.3296535625.

The spelling of 212060225 in words is "two hundred twelve million, sixty thousand, two hundred twenty-five".