1110121112100 has 1152 divisors, whose sum is σ = 4521710592000. Its totient is φ = 207073843200.

The previous prime is 1110121112077. The next prime is 1110121112101. The reversal of 1110121112100 is 12111210111.

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

It is not an unprimeable number, because it can be changed into a prime (1110121112101) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 544442881 + ... + 544444919.

It is an arithmetic number, because the mean of its divisors is an integer number (3925096000).

Almost surely, 2^{1110121112100} is an apocalyptic number.

1110121112100 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 1110121112100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2260855296000).

1110121112100 is an abundant number, since it is smaller than the sum of its proper divisors (3411589479900).

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

1110121112100 is a wasteful number, since it uses less digits than its factorization.

1110121112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138 (or 2117 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1110121112100 its reverse (12111210111), we get a palindrome (1122232322211).

It can be divided in two parts, 1110121 and 112100, that added together give a palindrome (1222221).

The spelling of 1110121112100 in words is "one trillion, one hundred ten billion, one hundred twenty-one million, one hundred twelve thousand, one hundred".