121002111111110 has 96 divisors (see below), whose sum is σ = 244658166439680. Its totient is φ = 43009033420800.

The previous prime is 121002111111103. The next prime is 121002111111113. The reversal of 121002111111110 is 11111111200121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002111111113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12797795 + ... + 20144174.

It is an arithmetic number, because the mean of its divisors is an integer number (2548522567080).

Almost surely, 2^{121002111111110} is an apocalyptic number.

121002111111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121002111111110 is an abundant number, since it is smaller than the sum of its proper divisors (123656055328570).

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

121002111111110 is a wasteful number, since it uses less digits than its factorization.

121002111111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32942082 (or 32942065 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 121002111111110 its reverse (11111111200121), we get a palindrome (132113222311231).

The spelling of 121002111111110 in words is "one hundred twenty-one trillion, two billion, one hundred eleven million, one hundred eleven thousand, one hundred ten".