111112122000 has 480 divisors, whose sum is σ = 406535980032. Its totient is φ = 26062080000.

The previous prime is 111112121971. The next prime is 111112122059. The reversal of 111112122000 is 221211111.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22503532 + ... + 22508468.

Almost surely, 2^111112122000 is an apocalyptic number.

111112122000 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 111112122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203267990016).

111112122000 is an abundant number, since it is smaller than the sum of its proper divisors (295423858032).

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

111112122000 is a wasteful number, since it uses less digits than its factorization.

111112122000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016 (or 4989 counting only the distinct ones).

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

Adding to 111112122000 its reverse (221211111), we get a palindrome (111333333111).

The spelling of 111112122000 in words is "one hundred eleven billion, one hundred twelve million, one hundred twenty-two thousand".