1123100220000 has 1080 divisors, whose sum is σ = 4198577406408. Its totient is φ = 262563840000.

The previous prime is 1123100219959. The next prime is 1123100220001. The reversal of 1123100220000 is 220013211.

It is a super-2 number, since 2×1123100220000² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123100220001) by changing a digit.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 9938939944 + ... + 9938940056.

Almost surely, 2^{1123100220000} is an apocalyptic number.

1123100220000 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 1123100220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2099288703204).

1123100220000 is an abundant number, since it is smaller than the sum of its proper divisors (3075477186408).

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

1123100220000 is a wasteful number, since it uses less digits than its factorization.

1123100220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1123100220000 its reverse (220013211), we get a palindrome (1123320233211).

The spelling of 1123100220000 in words is "one trillion, one hundred twenty-three billion, one hundred million, two hundred twenty thousand".