1123221223110 has 128 divisors (see below), whose sum is σ = 3106393804800. Its totient is φ = 254608997760.

The previous prime is 1123221223097. The next prime is 1123221223123. The reversal of 1123221223110 is 113221223211.

It is an interprime number because it is at equal distance from previous prime (1123221223097) and next prime (1123221223123).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44526081 + ... + 44551299.

It is an arithmetic number, because the mean of its divisors is an integer number (24268701600).

Almost surely, 2^{1123221223110} is an apocalyptic number.

1123221223110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123221223110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1553196902400).

1123221223110 is an abundant number, since it is smaller than the sum of its proper divisors (1983172581690).

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

1123221223110 is a wasteful number, since it uses less digits than its factorization.

1123221223110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26986.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1123221223110 its reverse (113221223211), we get a palindrome (1236442446321).

The spelling of 1123221223110 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-one million, two hundred twenty-three thousand, one hundred ten".