212202312130 has 16 divisors (see below), whose sum is σ = 389171033784. Its totient is φ = 83279397760.

The previous prime is 212202312107. The next prime is 212202312139. The reversal of 212202312130 is 31213202212.

It can be written as a sum of positive squares in 4 ways, for example, as 153414005761 + 58788306369 = 391681^2 + 242463^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212202312098 and 212202312107.

It is not an unprimeable number, because it can be changed into a prime (212202312139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 200190331 + ... + 200191390.

Almost surely, 2^212202312130 is an apocalyptic number.

212202312130 is a deficient number, since it is larger than the sum of its proper divisors (176968721654).

212202312130 is a wasteful number, since it uses less digits than its factorization.

212202312130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400381781.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212202312130 its reverse (31213202212), we get a palindrome (243415514342).

The spelling of 212202312130 in words is "two hundred twelve billion, two hundred two million, three hundred twelve thousand, one hundred thirty".