1110121021100 has 216 divisors, whose sum is σ = 2998759296288. Its totient is φ = 347364864000.

The previous prime is 1110121021001. The next prime is 1110121021111. The reversal of 1110121021100 is 11201210111.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 72073400 + ... + 72088800.

Almost surely, 2^{1110121021100} is an apocalyptic number.

1110121021100 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 1110121021100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499379648144).

1110121021100 is an abundant number, since it is smaller than the sum of its proper divisors (1888638275188).

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

1110121021100 is a wasteful number, since it uses less digits than its factorization.

1110121021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15613 (or 15517 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1110121021100 its reverse (11201210111), we get a palindrome (1121322231211).

The spelling of 1110121021100 in words is "one trillion, one hundred ten billion, one hundred twenty-one million, twenty-one thousand, one hundred".