130000212 has 36 divisors (see below), whose sum is σ = 328959540. Its totient is φ = 43287552.

The previous prime is 130000193. The next prime is 130000229. The reversal of 130000212 is 212000031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7322436 + 122677776 = 2706^2 + 11076^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 130000194 and 130000203.

It is a congruent number.

It is an unprimeable number.

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, 60468 + ... + 62580.

It is an arithmetic number, because the mean of its divisors is an integer number (9137765).

Almost surely, 2^130000212 is an apocalyptic number.

130000212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130000212 is an abundant number, since it is smaller than the sum of its proper divisors (198959328).

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

130000212 is a wasteful number, since it uses less digits than its factorization.

130000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832 (or 3827 counting only the distinct ones).

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

The square root of 130000212 is about 11401.7635478026. The cubic root of 130000212 is about 506.5799772815.

Adding to 130000212 its reverse (212000031), we get a palindrome (342000243).

The spelling of 130000212 in words is "one hundred thirty million, two hundred twelve", and thus it is an aban number.