121120102100 has 72 divisors (see below), whose sum is σ = 263931857280. Its totient is φ = 48245454720.

The previous prime is 121120102091. The next prime is 121120102141. The reversal of 121120102100 is 1201021121.

121120102100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31482377 + ... + 31486223.

It is an arithmetic number, because the mean of its divisors is an integer number (3665720240).

Almost surely, 2^121120102100 is an apocalyptic number.

121120102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121120102100 is an abundant number, since it is smaller than the sum of its proper divisors (142811755180).

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

121120102100 is a wasteful number, since it uses less digits than its factorization.

121120102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097 (or 5090 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121120102100 its reverse (1201021121), we get a palindrome (122321123221).

The spelling of 121120102100 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred two thousand, one hundred".