1123221110 has 64 divisors (see below), whose sum is σ = 2347963200. Its totient is φ = 382341120.

The previous prime is 1123221097. The next prime is 1123221133. The reversal of 1123221110 is 111223211.

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 31 ways as a sum of consecutive naturals, for example, 366866 + ... + 369914.

It is an arithmetic number, because the mean of its divisors is an integer number (36686925).

Almost surely, 2^1123221110 is an apocalyptic number.

1123221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123221110 is an abundant number, since it is smaller than the sum of its proper divisors (1224742090).

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

1123221110 is a wasteful number, since it uses less digits than its factorization.

1123221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1123221110 is about 33514.4910449197. The cubic root of 1123221110 is about 1039.4934385861.

Adding to 1123221110 its reverse (111223211), we get a palindrome (1234444321).

The spelling of 1123221110 in words is "one billion, one hundred twenty-three million, two hundred twenty-one thousand, one hundred ten".