1111223109 has 16 divisors (see below), whose sum is σ = 1536756480. Its totient is φ = 713649600.

The previous prime is 1111223101. The next prime is 1111223149. The reversal of 1111223109 is 9013221111.

It is a happy number.

1111223109 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1111223109 - 2³ = 1111223101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111223101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38349 + ... + 60770.

It is an arithmetic number, because the mean of its divisors is an integer number (96047280).

Almost surely, 2^1111223109 is an apocalyptic number.

It is an amenable number.

1111223109 is a deficient number, since it is larger than the sum of its proper divisors (425533371).

1111223109 is a wasteful number, since it uses less digits than its factorization.

1111223109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99260.

The product of its (nonzero) digits is 108, while the sum is 21.

The square root of 1111223109 is about 33335.0132593344. The cubic root of 1111223109 is about 1035.7789678302.

The spelling of 1111223109 in words is "one billion, one hundred eleven million, two hundred twenty-three thousand, one hundred nine".