10121121120 has 192 divisors, whose sum is σ = 35126058240. Its totient is φ = 2429184000.

The previous prime is 10121121113. The next prime is 10121121137. The reversal of 10121121120 is 2112112101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10121121096 and 10121121105.

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 31 ways as a sum of consecutive naturals, for example, 523791 + ... + 542769.

It is an arithmetic number, because the mean of its divisors is an integer number (182948220).

Almost surely, 2^10121121120 is an apocalyptic number.

10121121120 is a gapful number since it is divisible by the number (10) 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 10121121120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17563029120).

10121121120 is an abundant number, since it is smaller than the sum of its proper divisors (25004937120).

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

10121121120 is a wasteful number, since it uses less digits than its factorization.

10121121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19109 (or 19101 counting only the distinct ones).

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

Adding to 10121121120 its reverse (2112112101), we get a palindrome (12233233221).

The spelling of 10121121120 in words is "ten billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty".