121201022120 has 64 divisors (see below), whose sum is σ = 275586537600. Its totient is φ = 47968300800.

The previous prime is 121201022119. The next prime is 121201022123. The reversal of 121201022120 is 21220102121.

121201022120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121201022095 and 121201022104.

It is not an unprimeable number, because it can be changed into a prime (121201022123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6563861 + ... + 6582299.

It is an arithmetic number, because the mean of its divisors is an integer number (4306039650).

Almost surely, 2^121201022120 is an apocalyptic number.

121201022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121201022120 is an abundant number, since it is smaller than the sum of its proper divisors (154385515480).

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

121201022120 is a wasteful number, since it uses less digits than its factorization.

121201022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20178 (or 20174 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121201022120 its reverse (21220102121), we get a palindrome (142421124241).

The spelling of 121201022120 in words is "one hundred twenty-one billion, two hundred one million, twenty-two thousand, one hundred twenty".