121110001012 has 48 divisors (see below), whose sum is σ = 284566165632. Its totient is φ = 43556042880.

The previous prime is 121110001003. The next prime is 121110001049. The reversal of 121110001012 is 210100011121.

It is a self number, because there is not a number n which added to its sum of digits gives 121110001012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15119623 + ... + 15127630.

It is an arithmetic number, because the mean of its divisors is an integer number (5928461784).

Almost surely, 2^121110001012 is an apocalyptic number.

It is an amenable number.

121110001012 is an abundant number, since it is smaller than the sum of its proper divisors (163456164620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121110001012 is a wasteful number, since it uses less digits than its factorization.

121110001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30247288 (or 30247286 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121110001012 its reverse (210100011121), we get a palindrome (331210012133).

The spelling of 121110001012 in words is "one hundred twenty-one billion, one hundred ten million, one thousand, twelve".