212000130 has 24 divisors (see below), whose sum is σ = 551200572. Its totient is φ = 56533344.

The previous prime is 212000101. The next prime is 212000137. The reversal of 212000130 is 31000212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 194686209 + 17313921 = 13953^2 + 4161^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212000137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1177689 + ... + 1177868.

Almost surely, 2^212000130 is an apocalyptic number.

212000130 is an abundant number, since it is smaller than the sum of its proper divisors (339200442).

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

212000130 is a wasteful number, since it uses less digits than its factorization.

212000130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355570 (or 2355567 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 212000130 is about 14560.2242427787. The cubic root of 212000130 is about 596.2733176541.

Adding to 212000130 its reverse (31000212), we get a palindrome (243000342).

The spelling of 212000130 in words is "two hundred twelve million, one hundred thirty", and thus it is an aban number.