121011012110120 has 32 divisors (see below), whose sum is σ = 297027029725920. Its totient is φ = 44004004403520.

The previous prime is 121011012110077. The next prime is 121011012110123. The reversal of 121011012110120 is 21011210110121.

It is a junction number, because it is equal to n+sod(n) for n = 121011012110095 and 121011012110104.

It is not an unprimeable number, because it can be changed into a prime (121011012110123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137512513322 + ... + 137512514201.

It is an arithmetic number, because the mean of its divisors is an integer number (9282094678935).

Almost surely, 2^{121011012110120} is an apocalyptic number.

121011012110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121011012110120 is an abundant number, since it is smaller than the sum of its proper divisors (176016017615800).

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

121011012110120 is a wasteful number, since it uses less digits than its factorization.

121011012110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275025027545 (or 275025027541 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121011012110120 its reverse (21011210110121), we get a palindrome (142022222220241).

The spelling of 121011012110120 in words is "one hundred twenty-one trillion, eleven billion, twelve million, one hundred ten thousand, one hundred twenty".