11012221118 has 8 divisors (see below), whose sum is σ = 16567348512. Its totient is φ = 5489771616.

The previous prime is 11012221117. The next prime is 11012221123. The reversal of 11012221118 is 81112221011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11012221118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012221111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8168630 + ... + 8169977.

It is an arithmetic number, because the mean of its divisors is an integer number (2070918564).

Almost surely, 2^11012221118 is an apocalyptic number.

11012221118 is a deficient number, since it is larger than the sum of its proper divisors (5555127394).

11012221118 is a wasteful number, since it uses less digits than its factorization.

11012221118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16338946.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 11012221118 its reverse (81112221011), we get a palindrome (92124442129).

The spelling of 11012221118 in words is "eleven billion, twelve million, two hundred twenty-one thousand, one hundred eighteen".