212305015135 has 32 divisors (see below), whose sum is σ = 269180651520. Its totient is φ = 160747524000.

The previous prime is 212305015129. The next prime is 212305015157. The reversal of 212305015135 is 531510503212.

It is not a de Polignac number, because 212305015135 - 2³ = 212305015127 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 44684010 + ... + 44688760.

It is an arithmetic number, because the mean of its divisors is an integer number (8411895360).

Almost surely, 2^212305015135 is an apocalyptic number.

212305015135 is a deficient number, since it is larger than the sum of its proper divisors (56875636385).

212305015135 is an equidigital number, since it uses as much as digits as its factorization.

212305015135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6116 (or 6078 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 212305015135 its reverse (531510503212), we get a palindrome (743815518347).

The spelling of 212305015135 in words is "two hundred twelve billion, three hundred five million, fifteen thousand, one hundred thirty-five".