212134434102 has 24 divisors (see below), whose sum is σ = 462668484720. Its totient is φ = 70243189200.

The previous prime is 212134434013. The next prime is 212134434103. The reversal of 212134434102 is 201434431212.

212134434102 is a `hidden beast` number, since 2 + 1 + 213 + 4 + 434 + 10 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212134434103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39021277 + ... + 39026712.

It is an arithmetic number, because the mean of its divisors is an integer number (19277853530).

Almost surely, 2^212134434102 is an apocalyptic number.

212134434102 is an abundant number, since it is smaller than the sum of its proper divisors (250534050618).

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

212134434102 is a wasteful number, since it uses less digits than its factorization.

212134434102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78048148 (or 78048145 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 212134434102 its reverse (201434431212), we get a palindrome (413568865314).

The spelling of 212134434102 in words is "two hundred twelve billion, one hundred thirty-four million, four hundred thirty-four thousand, one hundred two".