111110211222009 has 16 divisors (see below), whose sum is σ = 154775954936832. Its totient is φ = 70766797285008.

The previous prime is 111110211221957. The next prime is 111110211222047. The reversal of 111110211222009 is 900222112011111.

It is not a de Polignac number, because 111110211222009 - 2²¹ = 111110209124857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111110211222009.

It is not an unprimeable number, because it can be changed into a prime (111110211222089) 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, 978249967 + ... + 978363540.

It is an arithmetic number, because the mean of its divisors is an integer number (9673497183552).

Almost surely, 2^{111110211222009} is an apocalyptic number.

It is an amenable number.

111110211222009 is a deficient number, since it is larger than the sum of its proper divisors (43665743714823).

111110211222009 is a wasteful number, since it uses less digits than its factorization.

111110211222009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956614356.

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 111110211222009 in words is "one hundred eleven trillion, one hundred ten billion, two hundred eleven million, two hundred twenty-two thousand, nine".