12130302212 has 54 divisors (see below), whose sum is σ = 25814375118. Its totient is φ = 4972627968.

The previous prime is 12130302211. The next prime is 12130302253. The reversal of 12130302212 is 21220303121.

It can be written as a sum of positive squares in only one way, i.e., 11154739456 + 975562756 = 105616^2 + 31234^2 .

It is not an unprimeable number, because it can be changed into a prime (12130302211) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 45188 + ... + 162180.

Almost surely, 2^12130302212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12130302212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12907187559).

12130302212 is an abundant number, since it is smaller than the sum of its proper divisors (13684072906).

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

12130302212 is a wasteful number, since it uses less digits than its factorization.

12130302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117057 (or 117025 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12130302212 its reverse (21220303121), we get a palindrome (33350605333).

Subtracting 12130302212 from its reverse (21220303121), we obtain a palindrome (9090000909).

The spelling of 12130302212 in words is "twelve billion, one hundred thirty million, three hundred two thousand, two hundred twelve".