11112222221110 has 64 divisors (see below), whose sum is σ = 21611241676800. Its totient is φ = 4101245672832.

The previous prime is 11112222221053. The next prime is 11112222221117. The reversal of 11112222221110 is 1112222221111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112222221117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6483961 + ... + 8016619.

It is an arithmetic number, because the mean of its divisors is an integer number (337675651200).

Almost surely, 2^{11112222221110} is an apocalyptic number.

11112222221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11112222221110 is a deficient number, since it is larger than the sum of its proper divisors (10499019455690).

11112222221110 is a wasteful number, since it uses less digits than its factorization.

11112222221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533805.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11112222221110 its reverse (1112222221111), we get a palindrome (12224444442221).

Subtracting from 11112222221110 its reverse (1112222221111), we obtain a palindrome (9999999999999).

It can be divided in two parts, 11112 and 222221110, that added together give a palindrome (222232222).

The spelling of 11112222221110 in words is "eleven trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred ten".