111101220113 has 16 divisors (see below), whose sum is σ = 132193627776. Its totient is φ = 92325699840.

The previous prime is 111101220101. The next prime is 111101220133. The reversal of 111101220113 is 311022101111.

It is a de Polignac number, because none of the positive numbers 2^k-111101220113 is a prime.

It is a super-2 number, since 2×111101220113² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111101220133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10923623 + ... + 10933788.

It is an arithmetic number, because the mean of its divisors is an integer number (8262101736).

Almost surely, 2^111101220113 is an apocalyptic number.

111101220113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111101220113 is a deficient number, since it is larger than the sum of its proper divisors (21092407663).

111101220113 is a wasteful number, since it uses less digits than its factorization.

111101220113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21857464.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111101220113 its reverse (311022101111), we get a palindrome (422123321224).

The spelling of 111101220113 in words is "one hundred eleven billion, one hundred one million, two hundred twenty thousand, one hundred thirteen".