121110122221020 has 96 divisors (see below), whose sum is σ = 377401708703040. Its totient is φ = 32243347296000.

The previous prime is 121110122221013. The next prime is 121110122221037. The reversal of 121110122221020 is 20122221011121.

121110122221020 is a `hidden beast` number, since 1 + 211 + 1 + 0 + 1 + 222 + 210 + 20 = 666.

121110122221020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121110122220984 and 121110122221002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182603731 + ... + 183265770.

It is an arithmetic number, because the mean of its divisors is an integer number (3931267798990).

Almost surely, 2^{121110122221020} is an apocalyptic number.

121110122221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121110122221020 is an abundant number, since it is smaller than the sum of its proper divisors (256291586482020).

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

121110122221020 is a wasteful number, since it uses less digits than its factorization.

121110122221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365870132 (or 365870124 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121110122221020 its reverse (20122221011121), we get a palindrome (141232343232141).

The spelling of 121110122221020 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred twenty-two million, two hundred twenty-one thousand, twenty".