1109921224 has 8 divisors (see below), whose sum is σ = 2081102310. Its totient is φ = 554960608.

The previous prime is 1109921201. The next prime is 1109921249. The reversal of 1109921224 is 4221299011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1083068100 + 26853124 = 32910^2 + 5182^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69370069 + ... + 69370084.

Almost surely, 2^1109921224 is an apocalyptic number.

It is an amenable number.

1109921224 is a deficient number, since it is larger than the sum of its proper divisors (971181086).

1109921224 is a wasteful number, since it uses less digits than its factorization.

1109921224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138740159 (or 138740155 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1109921224 is about 33315.4802456756. The cubic root of 1109921224 is about 1035.3743110022.

It can be divided in two parts, 11099 and 21224, that added together give a palindrome (32323).

The spelling of 1109921224 in words is "one billion, one hundred nine million, nine hundred twenty-one thousand, two hundred twenty-four".