2222200021122 has 48 divisors (see below), whose sum is σ = 4994877075552. Its totient is φ = 740468433600.

The previous prime is 2222200021087. The next prime is 2222200021127. The reversal of 2222200021122 is 2211200022222.

It is a super-2 number, since 2×2222200021122² (a number of 25 digits) contains 22 as substring.

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 = 2222200021095 and 2222200021104.

It is not an unprimeable number, because it can be changed into a prime (2222200021127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 545073 + ... + 2177499.

It is an arithmetic number, because the mean of its divisors is an integer number (104059939074).

Almost surely, 2^{2222200021122} is an apocalyptic number.

2222200021122 is an abundant number, since it is smaller than the sum of its proper divisors (2772677054430).

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

2222200021122 is a wasteful number, since it uses less digits than its factorization.

2222200021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635245 (or 1635233 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2222200021122 its reverse (2211200022222), we get a palindrome (4433400043344).

The spelling of 2222200021122 in words is "two trillion, two hundred twenty-two billion, two hundred million, twenty-one thousand, one hundred twenty-two".