10111221120 has 512 divisors, whose sum is σ = 43281423360. Its totient is φ = 1939046400.

The previous prime is 10111221119. The next prime is 10111221137. The reversal of 10111221120 is 2112211101.

10111221120 is digitally balanced in base 2, 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 junction number, because it is equal to n+sod(n) for n = 10111221096 and 10111221105.

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 63 ways as a sum of consecutive naturals, for example, 1919290 + ... + 1924550.

It is an arithmetic number, because the mean of its divisors is an integer number (84534030).

Almost surely, 2^10111221120 is an apocalyptic number.

10111221120 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 10111221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21640711680).

10111221120 is an abundant number, since it is smaller than the sum of its proper divisors (33170202240).

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

10111221120 is a wasteful number, since it uses less digits than its factorization.

10111221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5314 (or 5302 counting only the distinct ones).

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

Adding to 10111221120 its reverse (2112211101), we get a palindrome (12223432221).

The spelling of 10111221120 in words is "ten billion, one hundred eleven million, two hundred twenty-one thousand, one hundred twenty".