11102211018 has 12 divisors (see below), whose sum is σ = 24054790578. Its totient is φ = 3700737000.

The previous prime is 11102211011. The next prime is 11102211031. The reversal of 11102211018 is 81011220111.

It can be written as a sum of positive squares in only one way, i.e., 11050845129 + 51365889 = 105123^2 + 7167^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 616789501 = 11102211018 / (1 + 1 + 1 + 0 + 2 + 2 + 1 + 1 + 0 + 1 + 8).

It is not an unprimeable number, because it can be changed into a prime (11102211011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 308394733 + ... + 308394768.

Almost surely, 2^11102211018 is an apocalyptic number.

11102211018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11102211018 is an abundant number, since it is smaller than the sum of its proper divisors (12952579560).

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

11102211018 is a wasteful number, since it uses less digits than its factorization.

11102211018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616789509 (or 616789506 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11102211018 its reverse (81011220111), we get a palindrome (92113431129).

The spelling of 11102211018 in words is "eleven billion, one hundred two million, two hundred eleven thousand, eighteen".