111000111222000 has 2560 divisors, whose sum is σ = 495007693479936. Its totient is φ = 20651065344000.

The previous prime is 111000111221981. The next prime is 111000111222073. The reversal of 111000111222000 is 222111000111.

It is a super-3 number, since 3×111000111222000³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 101555453454 + ... + 101555454546.

Almost surely, 2^{111000111222000} is an apocalyptic number.

111000111222000 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 111000111222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247503846739968).

111000111222000 is an abundant number, since it is smaller than the sum of its proper divisors (384007582257936).

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

111000111222000 is a wasteful number, since it uses less digits than its factorization.

111000111222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111000111222000 its reverse (222111000111), we get a palindrome (111222222222111).

It can be divided in two parts, 111000111 and 222000, that added together give a palindrome (111222111).

The spelling of 111000111222000 in words is "one hundred eleven trillion, one hundred eleven million, two hundred twenty-two thousand".