121002100112120 has 64 divisors (see below), whose sum is σ = 286605974963520. Its totient is φ = 45886752507904.

The previous prime is 121002100112099. The next prime is 121002100112197. The reversal of 121002100112120 is 21211001200121.

It is a junction number, because it is equal to n+sod(n) for n = 121002100112095 and 121002100112104.

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, 581860739 + ... + 582068658.

It is an arithmetic number, because the mean of its divisors is an integer number (4478218358805).

Almost surely, 2^{121002100112120} is an apocalyptic number.

121002100112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002100112120 is an abundant number, since it is smaller than the sum of its proper divisors (165603874851400).

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

121002100112120 is a wasteful number, since it uses less digits than its factorization.

121002100112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163929544 (or 1163929540 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121002100112120 its reverse (21211001200121), we get a palindrome (142213101312241).

The spelling of 121002100112120 in words is "one hundred twenty-one trillion, two billion, one hundred million, one hundred twelve thousand, one hundred twenty".