2206021122 has 64 divisors (see below), whose sum is σ = 4993497600. Its totient is φ = 721768320.

The previous prime is 2206021021. The next prime is 2206021127. The reversal of 2206021122 is 2211206022.

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 = 2206021095 and 2206021104.

It is not an unprimeable number, because it can be changed into a prime (2206021127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 770718 + ... + 773574.

It is an arithmetic number, because the mean of its divisors is an integer number (78023400).

Almost surely, 2^2206021122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2206021122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2496748800).

2206021122 is an abundant number, since it is smaller than the sum of its proper divisors (2787476478).

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

2206021122 is a wasteful number, since it uses less digits than its factorization.

2206021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128 (or 3122 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2206021122 is about 46968.2991175963. The cubic root of 2206021122 is about 1301.7768841917.

Adding to 2206021122 its reverse (2211206022), we get a palindrome (4417227144).

The spelling of 2206021122 in words is "two billion, two hundred six million, twenty-one thousand, one hundred twenty-two".