11101221112118 has 16 divisors (see below), whose sum is σ = 16818002939520. Its totient is φ = 5495228640000.

The previous prime is 11101221112117. The next prime is 11101221112123. The reversal of 11101221112118 is 81121112210111.

It is a super-2 number, since 2×11101221112118² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11101221112093 and 11101221112102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101221112117) 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, 497318 + ... + 4738118.

It is an arithmetic number, because the mean of its divisors is an integer number (1051125183720).

Almost surely, 2^{11101221112118} is an apocalyptic number.

11101221112118 is a deficient number, since it is larger than the sum of its proper divisors (5716781827402).

11101221112118 is a wasteful number, since it uses less digits than its factorization.

11101221112118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253863.

The product of its (nonzero) digits is 64, while the sum is 23.

Adding to 11101221112118 its reverse (81121112210111), we get a palindrome (92222333322229).

The spelling of 11101221112118 in words is "eleven trillion, one hundred one billion, two hundred twenty-one million, one hundred twelve thousand, one hundred eighteen".