121121212010120 has 32 divisors (see below), whose sum is σ = 311454545169600. Its totient is φ = 41527272689088.

The previous prime is 121121212010107. The next prime is 121121212010159. The reversal of 121121212010120 is 21010212121121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216287878310 + ... + 216287878869.

It is an arithmetic number, because the mean of its divisors is an integer number (9732954536550).

Almost surely, 2^{121121212010120} is an apocalyptic number.

121121212010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121121212010120 is an abundant number, since it is smaller than the sum of its proper divisors (190333333159480).

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

121121212010120 is a wasteful number, since it uses less digits than its factorization.

121121212010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432575757197 (or 432575757193 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121121212010120 its reverse (21010212121121), we get a palindrome (142131424131241).

The spelling of 121121212010120 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred twelve million, ten thousand, one hundred twenty".