12102122012 has 12 divisors (see below), whose sum is σ = 21206117016. Its totient is φ = 6043231440.

The previous prime is 12102121963. The next prime is 12102122161. The reversal of 12102122012 is 21022120121.

It is a super-2 number, since 2×12102122012² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1953914 + ... + 1960097.

It is an arithmetic number, because the mean of its divisors is an integer number (1767176418).

Almost surely, 2^12102122012 is an apocalyptic number.

It is an amenable number.

12102122012 is a deficient number, since it is larger than the sum of its proper divisors (9103995004).

12102122012 is a wasteful number, since it uses less digits than its factorization.

12102122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914788 (or 3914786 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12102122012 its reverse (21022120121), we get a palindrome (33124242133).

The spelling of 12102122012 in words is "twelve billion, one hundred two million, one hundred twenty-two thousand, twelve".