212143304125 has 16 divisors (see below), whose sum is σ = 265102866288. Its totient is φ = 169491552000.

The previous prime is 212143304099. The next prime is 212143304141. The reversal of 212143304125 is 521403341212.

It can be written as a sum of positive squares in 8 ways, for example, as 125371230084 + 86772074041 = 354078^2 + 294571^2 .

It is not a de Polignac number, because 212143304125 - 2¹³ = 212143295933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212143304093 and 212143304102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1019952 + ... + 1210201.

It is an arithmetic number, because the mean of its divisors is an integer number (16568929143).

Almost surely, 2^212143304125 is an apocalyptic number.

212143304125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212143304125 is a deficient number, since it is larger than the sum of its proper divisors (52959562163).

212143304125 is an equidigital number, since it uses as much as digits as its factorization.

212143304125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230929 (or 2230919 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 212143304125 its reverse (521403341212), we get a palindrome (733546645337).

The spelling of 212143304125 in words is "two hundred twelve billion, one hundred forty-three million, three hundred four thousand, one hundred twenty-five".