121044107808 has 768 divisors, whose sum is σ = 416992665600. Its totient is φ = 33849446400.

The previous prime is 121044107791. The next prime is 121044107843. The reversal of 121044107808 is 808701440121.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 801616533 + ... + 801616683.

It is an arithmetic number, because the mean of its divisors is an integer number (542959200).

Almost surely, 2^121044107808 is an apocalyptic number.

121044107808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121044107808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208496332800).

121044107808 is an abundant number, since it is smaller than the sum of its proper divisors (295948557792).

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

121044107808 is a wasteful number, since it uses less digits than its factorization.

121044107808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

Adding to 121044107808 its reverse (808701440121), we get a palindrome (929745547929).

The spelling of 121044107808 in words is "one hundred twenty-one billion, forty-four million, one hundred seven thousand, eight hundred eight".