111102213420 has 144 divisors (see below), whose sum is σ = 369496108800. Its totient is φ = 26798428800.

The previous prime is 111102213419. The next prime is 111102213433. The reversal of 111102213420 is 24312201111.

111102213420 is a `hidden beast` number, since 1 + 11 + 10 + 221 + 3 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111102213393 and 111102213402.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253035 + ... + 535005.

It is an arithmetic number, because the mean of its divisors is an integer number (2565945200).

Almost surely, 2^111102213420 is an apocalyptic number.

111102213420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111102213420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184748054400).

111102213420 is an abundant number, since it is smaller than the sum of its proper divisors (258393895380).

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

111102213420 is a wasteful number, since it uses less digits than its factorization.

111102213420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282196 (or 282191 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111102213420 its reverse (24312201111), we get a palindrome (135414414531).

The spelling of 111102213420 in words is "one hundred eleven billion, one hundred two million, two hundred thirteen thousand, four hundred twenty".