212130545530 has 16 divisors (see below), whose sum is σ = 381856646304. Its totient is φ = 84847403920.

The previous prime is 212130545503. The next prime is 212130545551. The reversal of 212130545530 is 35545031212.

It is a junction number, because it is equal to n+sod(n) for n = 212130545492 and 212130545501.

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, 413932 + ... + 771751.

It is an arithmetic number, because the mean of its divisors is an integer number (23866040394).

Almost surely, 2^212130545530 is an apocalyptic number.

212130545530 is a deficient number, since it is larger than the sum of its proper divisors (169726100774).

212130545530 is a wasteful number, since it uses less digits than its factorization.

212130545530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203581.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 212130545530 its reverse (35545031212), we get a palindrome (247675576742).

The spelling of 212130545530 in words is "two hundred twelve billion, one hundred thirty million, five hundred forty-five thousand, five hundred thirty".