212943020425 has 12 divisors (see below), whose sum is σ = 279581660316. Its totient is φ = 160333568000.

The previous prime is 212943020401. The next prime is 212943020449. The reversal of 212943020425 is 524020349212.

It is an interprime number because it is at equal distance from previous prime (212943020401) and next prime (212943020449).

It can be written as a sum of positive squares in 6 ways, for example, as 1339340409 + 211603680016 = 36597^2 + 460004^2 .

It is a de Polignac number, because none of the positive numbers 2^k-212943020425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250520776 + ... + 250521625.

It is an arithmetic number, because the mean of its divisors is an integer number (23298471693).

Almost surely, 2^212943020425 is an apocalyptic number.

212943020425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212943020425 is a deficient number, since it is larger than the sum of its proper divisors (66638639891).

212943020425 is a wasteful number, since it uses less digits than its factorization.

212943020425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501042428 (or 501042423 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 212943020425 its reverse (524020349212), we get a palindrome (736963369637).

The spelling of 212943020425 in words is "two hundred twelve billion, nine hundred forty-three million, twenty thousand, four hundred twenty-five".