12012121010012 has 12 divisors (see below), whose sum is σ = 21023218256040. Its totient is φ = 6005487222576.

The previous prime is 12012121010009. The next prime is 12012121010041. The reversal of 12012121010012 is 21001012121021.

It is a super-2 number, since 2×12012121010012² (a number of 27 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, 143273462 + ... + 143357277.

It is an arithmetic number, because the mean of its divisors is an integer number (1751934854670).

Almost surely, 2^{12012121010012} is an apocalyptic number.

It is an amenable number.

12012121010012 is a deficient number, since it is larger than the sum of its proper divisors (9011097246028).

12012121010012 is a wasteful number, since it uses less digits than its factorization.

12012121010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286641220 (or 286641218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12012121010012 its reverse (21001012121021), we get a palindrome (33013133131033).

The spelling of 12012121010012 in words is "twelve trillion, twelve billion, one hundred twenty-one million, ten thousand, twelve".