1103221112 has 64 divisors (see below), whose sum is σ = 2461717440. Its totient is φ = 453657600.

The previous prime is 1103221099. The next prime is 1103221139. The reversal of 1103221112 is 2111223011.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136118 + ... + 143994.

It is an arithmetic number, because the mean of its divisors is an integer number (38464335).

Almost surely, 2^1103221112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103221112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1230858720).

1103221112 is an abundant number, since it is smaller than the sum of its proper divisors (1358496328).

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

1103221112 is a wasteful number, since it uses less digits than its factorization.

1103221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7992 (or 7988 counting only the distinct ones).

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

The square root of 1103221112 is about 33214.7724965865. The cubic root of 1103221112 is about 1033.2867365276.

Adding to 1103221112 its reverse (2111223011), we get a palindrome (3214444123).

The spelling of 1103221112 in words is "one billion, one hundred three million, two hundred twenty-one thousand, one hundred twelve".