212130224124 has 48 divisors (see below), whose sum is σ = 609194492928. Its totient is φ = 55946432448.

The previous prime is 212130224123. The next prime is 212130224147. The reversal of 212130224124 is 421422031212.

It is a junction number, because it is equal to n+sod(n) for n = 212130224094 and 212130224103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212130224123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97128132 + ... + 97130315.

It is an arithmetic number, because the mean of its divisors is an integer number (12691551936).

Almost surely, 2^212130224124 is an apocalyptic number.

It is an amenable number.

212130224124 is an abundant number, since it is smaller than the sum of its proper divisors (397064268804).

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

212130224124 is a wasteful number, since it uses less digits than its factorization.

212130224124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194258474 (or 194258472 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 212130224124 its reverse (421422031212), we get a palindrome (633552255336).

The spelling of 212130224124 in words is "two hundred twelve billion, one hundred thirty million, two hundred twenty-four thousand, one hundred twenty-four".