212424533544520 has 64 divisors (see below), whose sum is σ = 522882743523840. Its totient is φ = 77026459699200.

The previous prime is 212424533544493. The next prime is 212424533544557. The reversal of 212424533544520 is 25445335424212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683673336 + ... + 683983975.

It is an arithmetic number, because the mean of its divisors is an integer number (8170042867560).

Almost surely, 2^{212424533544520} is an apocalyptic number.

212424533544520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212424533544520 is an abundant number, since it is smaller than the sum of its proper divisors (310458209979320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212424533544520 is a wasteful number, since it uses less digits than its factorization.

212424533544520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367657686 (or 1367657682 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 46.

Adding to 212424533544520 its reverse (25445335424212), we get a palindrome (237869868968732).

The spelling of 212424533544520 in words is "two hundred twelve trillion, four hundred twenty-four billion, five hundred thirty-three million, five hundred forty-four thousand, five hundred twenty".