111112021222000 has 160 divisors (see below), whose sum is σ = 271437826652928. Its totient is φ = 43987104000000.

The previous prime is 111112021221979. The next prime is 111112021222009. The reversal of 111112021222000 is 222120211111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112021222009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 509132905 + ... + 509351095.

Almost surely, 2^{111112021222000} is an apocalyptic number.

111112021222000 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 111112021222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135718913326464).

111112021222000 is an abundant number, since it is smaller than the sum of its proper divisors (160325805430928).

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

111112021222000 is a wasteful number, since it uses less digits than its factorization.

111112021222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220836 (or 220820 counting only the distinct ones).

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

Adding to 111112021222000 its reverse (222120211111), we get a palindrome (111334141433111).

The spelling of 111112021222000 in words is "one hundred eleven trillion, one hundred twelve billion, twenty-one million, two hundred twenty-two thousand".