112021222020 has 48 divisors (see below), whose sum is σ = 318975693120. Its totient is φ = 29366014336.

The previous prime is 112021222009. The next prime is 112021222021. The reversal of 112021222020 is 20222120211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (112021222021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15818667 + ... + 15825746.

It is an arithmetic number, because the mean of its divisors is an integer number (6645326940).

Almost surely, 2^112021222020 is an apocalyptic number.

112021222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112021222020 is an abundant number, since it is smaller than the sum of its proper divisors (206954471100).

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

112021222020 is a wasteful number, since it uses less digits than its factorization.

112021222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31644484 (or 31644482 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 112021222020 its reverse (20222120211), we get a palindrome (132243342231).

The spelling of 112021222020 in words is "one hundred twelve billion, twenty-one million, two hundred twenty-two thousand, twenty".