12125313212 has 6 divisors (see below), whose sum is σ = 21219298128. Its totient is φ = 6062656604.

The previous prime is 12125313181. The next prime is 12125313251. The reversal of 12125313212 is 21231352121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515664148 + ... + 1515664155.

It is an arithmetic number, because the mean of its divisors is an integer number (3536549688).

Almost surely, 2^12125313212 is an apocalyptic number.

It is an amenable number.

12125313212 is a deficient number, since it is larger than the sum of its proper divisors (9093984916).

12125313212 is a wasteful number, since it uses less digits than its factorization.

12125313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031328307 (or 3031328305 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

Adding to 12125313212 its reverse (21231352121), we get a palindrome (33356665333).

The spelling of 12125313212 in words is "twelve billion, one hundred twenty-five million, three hundred thirteen thousand, two hundred twelve".