112021022178 has 96 divisors (see below), whose sum is σ = 269250364656. Its totient is φ = 33436053504.

The previous prime is 112021022177. The next prime is 112021022207. The reversal of 112021022178 is 871220120211.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 35912903049 + 76108119129 = 189507^2 + 275877^2 .

It is not an unprimeable number, because it can be changed into a prime (112021022171) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2898550 + ... + 2936942.

Almost surely, 2^112021022178 is an apocalyptic number.

112021022178 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 112021022178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134625182328).

112021022178 is an abundant number, since it is smaller than the sum of its proper divisors (157229342478).

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

112021022178 is a wasteful number, since it uses less digits than its factorization.

112021022178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38788 (or 38785 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

Adding to 112021022178 its reverse (871220120211), we get a palindrome (983241142389).

The spelling of 112021022178 in words is "one hundred twelve billion, twenty-one million, twenty-two thousand, one hundred seventy-eight".