111102213100 has 72 divisors (see below), whose sum is σ = 268709207760. Its totient is φ = 39625297920.

The previous prime is 111102213091. The next prime is 111102213109. The reversal of 111102213100 is 1312201111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111102213091) and next prime (111102213109).

It is a super-2 number, since 2×111102213100² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111102213109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1687549 + ... + 1752148.

It is an arithmetic number, because the mean of its divisors is an integer number (3732072330).

Almost surely, 2^111102213100 is an apocalyptic number.

111102213100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111102213100 is an abundant number, since it is smaller than the sum of its proper divisors (157606994660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111102213100 is a wasteful number, since it uses less digits than its factorization.

111102213100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3439747 (or 3439740 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111102213100 its reverse (1312201111), we get a palindrome (112414414211).

The spelling of 111102213100 in words is "one hundred eleven billion, one hundred two million, two hundred thirteen thousand, one hundred".