111200222221220 has 192 divisors, whose sum is σ = 265736871493632. Its totient is φ = 38720393280000.

The previous prime is 111200222221217. The next prime is 111200222221349. The reversal of 111200222221220 is 22122222002111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 111200222221192 and 111200222221201.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1120660529 + ... + 1120759751.

It is an arithmetic number, because the mean of its divisors is an integer number (1384046205696).

Almost surely, 2^{111200222221220} is an apocalyptic number.

111200222221220 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 111200222221220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132868435746816).

111200222221220 is an abundant number, since it is smaller than the sum of its proper divisors (154536649272412).

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

111200222221220 is a wasteful number, since it uses less digits than its factorization.

111200222221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101002 (or 101000 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 111200222221220 its reverse (22122222002111), we get a palindrome (133322444223331).

The spelling of 111200222221220 in words is "one hundred eleven trillion, two hundred billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty".