12121100012012 has 6 divisors (see below), whose sum is σ = 21211925021028. Its totient is φ = 6060550006004.

The previous prime is 12121100011991. The next prime is 12121100012081. The reversal of 12121100012012 is 21021000112121.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515137501498 + ... + 1515137501505.

It is an arithmetic number, because the mean of its divisors is an integer number (3535320836838).

Almost surely, 2^{12121100012012} is an apocalyptic number.

It is an amenable number.

12121100012012 is a deficient number, since it is larger than the sum of its proper divisors (9090825009016).

12121100012012 is a wasteful number, since it uses less digits than its factorization.

12121100012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030275003007 (or 3030275003005 counting only the distinct ones).

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

Adding to 12121100012012 its reverse (21021000112121), we get a palindrome (33142100124133).

The spelling of 12121100012012 in words is "twelve trillion, one hundred twenty-one billion, one hundred million, twelve thousand, twelve".