121002001111120 has 40 divisors (see below), whose sum is σ = 287872202651616. Its totient is φ = 47275200432768.

The previous prime is 121002001111109. The next prime is 121002001111129. The reversal of 121002001111120 is 21111100200121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 121002001111120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002001111129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17587496722 + ... + 17587503601.

Almost surely, 2^{121002001111120} is an apocalyptic number.

121002001111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002001111120 is an abundant number, since it is smaller than the sum of its proper divisors (166870201540496).

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

121002001111120 is a wasteful number, since it uses less digits than its factorization.

121002001111120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35175000379 (or 35175000373 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121002001111120 its reverse (21111100200121), we get a palindrome (142113101311241).

The spelling of 121002001111120 in words is "one hundred twenty-one trillion, two billion, one million, one hundred eleven thousand, one hundred twenty".