212003042124 has 12 divisors (see below), whose sum is σ = 494673764984. Its totient is φ = 70667680704.

The previous prime is 212003042089. The next prime is 212003042129. The reversal of 212003042124 is 421240300212.

212003042124 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 212003042124.

It is not an unprimeable number, because it can be changed into a prime (212003042129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8833460077 + ... + 8833460100.

Almost surely, 2^212003042124 is an apocalyptic number.

It is an amenable number.

212003042124 is an abundant number, since it is smaller than the sum of its proper divisors (282670722860).

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

212003042124 is a wasteful number, since it uses less digits than its factorization.

212003042124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17666920184 (or 17666920182 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 212003042124 its reverse (421240300212), we get a palindrome (633243342336).

The spelling of 212003042124 in words is "two hundred twelve billion, three million, forty-two thousand, one hundred twenty-four".