212102353734 has 12 divisors (see below), whose sum is σ = 424206963684. Its totient is φ = 70700408544.

The previous prime is 212102353717. The next prime is 212102353753. The reversal of 212102353734 is 437353201212.

It is a junction number, because it is equal to n+sod(n) for n = 212102353695 and 212102353704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1034094 + ... + 1222110.

It is an arithmetic number, because the mean of its divisors is an integer number (35350580307).

Almost surely, 2^212102353734 is an apocalyptic number.

212102353734 is an abundant number, since it is smaller than the sum of its proper divisors (212104609950).

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

212102353734 is an frugal number, since it uses more digits than its factorization.

212102353734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376039 (or 188022 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

Adding to 212102353734 its reverse (437353201212), we get a palindrome (649455554946).

The spelling of 212102353734 in words is "two hundred twelve billion, one hundred two million, three hundred fifty-three thousand, seven hundred thirty-four".