2112021122022 has 144 divisors (see below), whose sum is σ = 5358330012672. Its totient is φ = 599451723360.

The previous prime is 2112021122009. The next prime is 2112021122023. The reversal of 2112021122022 is 2202211202112.

It is a happy number.

2112021122022 is a `hidden beast` number, since 211 + 2 + 0 + 211 + 220 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2112021121986 and 2112021122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112021122023) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 315647697 + ... + 315654387.

It is an arithmetic number, because the mean of its divisors is an integer number (37210625088).

Almost surely, 2^{2112021122022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112021122022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2679165006336).

2112021122022 is an abundant number, since it is smaller than the sum of its proper divisors (3246308890650).

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

2112021122022 is a wasteful number, since it uses less digits than its factorization.

2112021122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9023 (or 9013 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2112021122022 its reverse (2202211202112), we get a palindrome (4314232324134).

The spelling of 2112021122022 in words is "two trillion, one hundred twelve billion, twenty-one million, one hundred twenty-two thousand, twenty-two".