2209934962225 has 9 divisors (see below), whose sum is σ = 2740328570017. Its totient is φ = 1767942023440.

The previous prime is 2209934962223. The next prime is 2209934962247. The reversal of 2209934962225 is 5222694399022.

The square root of 2209934962225 is 1486585.

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

It can be written as a sum of positive squares in 4 ways, for example, as 863072586289 + 1346862375936 = 929017^2 + 1160544^2 .

It is not a de Polignac number, because 2209934962225 - 2¹ = 2209934962223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2209934962223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7284267 + ... + 7581583.

Almost surely, 2^{2209934962225} is an apocalyptic number.

2209934962225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2209934962225 is the 1486585-th square number.

2209934962225 is the 743293-rd centered octagonal number.

It is an amenable number.

2209934962225 is a deficient number, since it is larger than the sum of its proper divisors (530393607792).

2209934962225 is an frugal number, since it uses more digits than its factorization.

2209934962225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594644 (or 297322 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 55.

The spelling of 2209934962225 in words is "two trillion, two hundred nine billion, nine hundred thirty-four million, nine hundred sixty-two thousand, two hundred twenty-five".