212252104225 has 24 divisors (see below), whose sum is σ = 300808965248. Its totient is φ = 145535875200.

The previous prime is 212252104219. The next prime is 212252104237. The reversal of 212252104225 is 522401252212.

It is not a de Polignac number, because 212252104225 - 2¹³ = 212252096033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212252104193 and 212252104202.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5352220 + ... + 5391730.

Almost surely, 2^212252104225 is an apocalyptic number.

212252104225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212252104225 is a deficient number, since it is larger than the sum of its proper divisors (88556861023).

212252104225 is a wasteful number, since it uses less digits than its factorization.

212252104225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70225 (or 70220 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 212252104225 its reverse (522401252212), we get a palindrome (734653356437).

The spelling of 212252104225 in words is "two hundred twelve billion, two hundred fifty-two million, one hundred four thousand, two hundred twenty-five".