212304202245 has 48 divisors (see below), whose sum is σ = 396992439792. Its totient is φ = 104557639680.

The previous prime is 212304202223. The next prime is 212304202259. The reversal of 212304202245 is 542202403212.

212304202245 is a `hidden beast` number, since 2 + 1 + 230 + 420 + 2 + 2 + 4 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 6956560836 + 205347641409 = 83406^2 + 453153^2 .

It is not a de Polignac number, because 212304202245 - 2¹⁷ = 212304071173 is a prime.

It is a congruent number.

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, 2577586 + ... + 2658675.

It is an arithmetic number, because the mean of its divisors is an integer number (8270675829).

Almost surely, 2^212304202245 is an apocalyptic number.

It is an amenable number.

212304202245 is a deficient number, since it is larger than the sum of its proper divisors (184688237547).

212304202245 is a wasteful number, since it uses less digits than its factorization.

212304202245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5236342 (or 5236339 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 212304202245 its reverse (542202403212), we get a palindrome (754506605457).

The spelling of 212304202245 in words is "two hundred twelve billion, three hundred four million, two hundred two thousand, two hundred forty-five".