11001111021218 has 16 divisors (see below), whose sum is σ = 17370389440320. Its totient is φ = 5210988345936.

The previous prime is 11001111021217. The next prime is 11001111021233. The reversal of 11001111021218 is 81212011110011.

It is a self number, because there is not a number n which added to its sum of digits gives 11001111021218.

It is not an unprimeable number, because it can be changed into a prime (11001111021217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1412780 + ... + 4898792.

It is an arithmetic number, because the mean of its divisors is an integer number (1085649340020).

Almost surely, 2^{11001111021218} is an apocalyptic number.

11001111021218 is a deficient number, since it is larger than the sum of its proper divisors (6369278419102).

11001111021218 is a wasteful number, since it uses less digits than its factorization.

11001111021218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569081.

The product of its (nonzero) digits is 32, while the sum is 20.

Adding to 11001111021218 its reverse (81212011110011), we get a palindrome (92213122131229).

The spelling of 11001111021218 in words is "eleven trillion, one billion, one hundred eleven million, twenty-one thousand, two hundred eighteen".