111221001110 has 32 divisors (see below), whose sum is σ = 212001626592. Its totient is φ = 41866007040.

The previous prime is 111221001109. The next prime is 111221001121. The reversal of 111221001110 is 11100122111.

It is a super-2 number, since 2×111221001110² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111221001091 and 111221001100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1420649 + ... + 1496891.

It is an arithmetic number, because the mean of its divisors is an integer number (6625050831).

Almost surely, 2^111221001110 is an apocalyptic number.

111221001110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111221001110 is a deficient number, since it is larger than the sum of its proper divisors (100780625482).

111221001110 is a wasteful number, since it uses less digits than its factorization.

111221001110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84848.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111221001110 its reverse (11100122111), we get a palindrome (122321123221).

The spelling of 111221001110 in words is "one hundred eleven billion, two hundred twenty-one million, one thousand, one hundred ten".