121012221120112 has 40 divisors (see below), whose sum is σ = 268870156896096. Its totient is φ = 51685375754496.

The previous prime is 121012221120079. The next prime is 121012221120181. The reversal of 121012221120112 is 211021122210121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121012221120112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1843766263 + ... + 1843831894.

Almost surely, 2^{121012221120112} is an apocalyptic number.

It is an amenable number.

121012221120112 is an abundant number, since it is smaller than the sum of its proper divisors (147857935775984).

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

121012221120112 is a wasteful number, since it uses less digits than its factorization.

121012221120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687598465 (or 3687598459 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121012221120112 its reverse (211021122210121), we get a palindrome (332033343330233).

The spelling of 121012221120112 in words is "one hundred twenty-one trillion, twelve billion, two hundred twenty-one million, one hundred twenty thousand, one hundred twelve".