2112221022020 has 24 divisors (see below), whose sum is σ = 4436374455744. Its totient is φ = 844753111776.

The previous prime is 2112221022001. The next prime is 2112221022047. The reversal of 2112221022020 is 202201222112.

It is a happy number.

It is a super-2 number, since 2×2112221022020² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2112221022020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8328002 + ... + 8577881.

It is an arithmetic number, because the mean of its divisors is an integer number (184848935656).

Almost surely, 2^{2112221022020} is an apocalyptic number.

2112221022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112221022020 is an abundant number, since it is smaller than the sum of its proper divisors (2324153433724).

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

2112221022020 is a wasteful number, since it uses less digits than its factorization.

2112221022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16912139 (or 16912137 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2112221022020 its reverse (202201222112), we get a palindrome (2314422244132).

The spelling of 2112221022020 in words is "two trillion, one hundred twelve billion, two hundred twenty-one million, twenty-two thousand, twenty".