212130434000 has 40 divisors (see below), whose sum is σ = 512931394248. Its totient is φ = 84852172800.

The previous prime is 212130433997. The next prime is 212130434023. The reversal of 212130434000 is 434031212.

It can be written as a sum of positive squares in 4 ways, for example, as 11235904 + 212119198096 = 3352^2 + 460564^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 53030609 + ... + 53034608.

Almost surely, 2^212130434000 is an apocalyptic number.

212130434000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212130434000 is an abundant number, since it is smaller than the sum of its proper divisors (300800960248).

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

212130434000 is a wasteful number, since it uses less digits than its factorization.

212130434000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106065240 (or 106065224 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212130434000 its reverse (434031212), we get a palindrome (212564465212).

The spelling of 212130434000 in words is "two hundred twelve billion, one hundred thirty million, four hundred thirty-four thousand".