121201100112 has 20 divisors (see below), whose sum is σ = 313102842080. Its totient is φ = 40400366688.

The previous prime is 121201100107. The next prime is 121201100147. The reversal of 121201100112 is 211001102121.

121201100112 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 (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262511412 + ... + 1262511507.

It is an arithmetic number, because the mean of its divisors is an integer number (15655142104).

Almost surely, 2^121201100112 is an apocalyptic number.

121201100112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121201100112 is an abundant number, since it is smaller than the sum of its proper divisors (191901741968).

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

121201100112 is a wasteful number, since it uses less digits than its factorization.

121201100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525022930 (or 2525022924 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121201100112 its reverse (211001102121), we get a palindrome (332202202233).

The spelling of 121201100112 in words is "one hundred twenty-one billion, two hundred one million, one hundred thousand, one hundred twelve".