121110212012 has 6 divisors (see below), whose sum is σ = 211942871028. Its totient is φ = 60555106004.

The previous prime is 121110211991. The next prime is 121110212063. The reversal of 121110212012 is 210212011121.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15138776498 + ... + 15138776505.

It is an arithmetic number, because the mean of its divisors is an integer number (35323811838).

Almost surely, 2^121110212012 is an apocalyptic number.

It is an amenable number.

121110212012 is a deficient number, since it is larger than the sum of its proper divisors (90832659016).

121110212012 is a wasteful number, since it uses less digits than its factorization.

121110212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30277553007 (or 30277553005 counting only the distinct ones).

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

Adding to 121110212012 its reverse (210212011121), we get a palindrome (331322223133).

The spelling of 121110212012 in words is "one hundred twenty-one billion, one hundred ten million, two hundred twelve thousand, twelve".