111022313220 has 432 divisors, whose sum is σ = 426074358528. Its totient is φ = 22786790400.

The previous prime is 111022313209. The next prime is 111022313221. The reversal of 111022313220 is 22313220111.

111022313220 is a `hidden beast` number, since 1 + 110 + 2 + 231 + 322 + 0 = 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 = 111022313193 and 111022313202.

It is not an unprimeable number, because it can be changed into a prime (111022313221) 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 143 ways as a sum of consecutive naturals, for example, 22421745 + ... + 22426695.

Almost surely, 2^111022313220 is an apocalyptic number.

111022313220 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 111022313220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213037179264).

111022313220 is an abundant number, since it is smaller than the sum of its proper divisors (315052045308).

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

111022313220 is a wasteful number, since it uses less digits than its factorization.

111022313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060 (or 5018 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 111022313220 its reverse (22313220111), we get a palindrome (133335533331).

The spelling of 111022313220 in words is "one hundred eleven billion, twenty-two million, three hundred thirteen thousand, two hundred twenty".