111000221112220 has 384 divisors, whose sum is σ = 263041525377792. Its totient is φ = 39007567872000.

The previous prime is 111000221112211. The next prime is 111000221112251. The reversal of 111000221112220 is 22211122000111.

It is a super-2 number, since 2×111000221112220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111000221112194 and 111000221112203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 101555553994 + ... + 101555555086.

It is an arithmetic number, because the mean of its divisors is an integer number (685003972338).

Almost surely, 2^{111000221112220} is an apocalyptic number.

111000221112220 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 111000221112220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131520762688896).

111000221112220 is an abundant number, since it is smaller than the sum of its proper divisors (152041304265572).

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

111000221112220 is a wasteful number, since it uses less digits than its factorization.

111000221112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111000221112220 its reverse (22211122000111), we get a palindrome (133211343112331).

It can be divided in two parts, 1110002 and 21112220, that added together give a palindrome (22222222).

The spelling of 111000221112220 in words is "one hundred eleven trillion, two hundred twenty-one million, one hundred twelve thousand, two hundred twenty".