212428329212 has 24 divisors (see below), whose sum is σ = 406536579120. Its totient is φ = 96322239360.

The previous prime is 212428329203. The next prime is 212428329259. The reversal of 212428329212 is 212923824212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5884103 + ... + 5920094.

It is an arithmetic number, because the mean of its divisors is an integer number (16939024130).

Almost surely, 2^212428329212 is an apocalyptic number.

212428329212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212428329212 is a deficient number, since it is larger than the sum of its proper divisors (194108249908).

212428329212 is a wasteful number, since it uses less digits than its factorization.

212428329212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11804621 (or 11804619 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The spelling of 212428329212 in words is "two hundred twelve billion, four hundred twenty-eight million, three hundred twenty-nine thousand, two hundred twelve".