212231335015 has 12 divisors (see below), whose sum is σ = 296257619016. Its totient is φ = 145530058128.

The previous prime is 212231334893. The next prime is 212231335033. The reversal of 212231335015 is 510533132212.

It is not a de Polignac number, because 212231335015 - 2²⁵ = 212197780583 is a prime.

It is a Duffinian number.

It is a congruent 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, 433124929 + ... + 433125418.

It is an arithmetic number, because the mean of its divisors is an integer number (24688134918).

Almost surely, 2^212231335015 is an apocalyptic number.

212231335015 is a deficient number, since it is larger than the sum of its proper divisors (84026284001).

212231335015 is an equidigital number, since it uses as much as digits as its factorization.

212231335015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866250366 (or 866250359 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 212231335015 its reverse (510533132212), we get a palindrome (722764467227).

The spelling of 212231335015 in words is "two hundred twelve billion, two hundred thirty-one million, three hundred thirty-five thousand, fifteen".