2220021122 has 12 divisors (see below), whose sum is σ = 3660283158. Its totient is φ = 1009100400.

The previous prime is 2220021121. The next prime is 2220021149. The reversal of 2220021122 is 2211200222.

It can be written as a sum of positive squares in only one way, i.e., 2176315801 + 43705321 = 46651^2 + 6611^2 .

It is a super-2 number, since 2×2220021122² = 9856987564252277768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2220021097 and 2220021106.

It is not an unprimeable number, because it can be changed into a prime (2220021121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4586579 + ... + 4587062.

Almost surely, 2^2220021122 is an apocalyptic number.

2220021122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2220021122 is a deficient number, since it is larger than the sum of its proper divisors (1440262036).

2220021122 is a wasteful number, since it uses less digits than its factorization.

2220021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9173665 (or 9173654 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2220021122 is about 47117.1001017677. The cubic root of 2220021122 is about 1304.5248872577.

Adding to 2220021122 its reverse (2211200222), we get a palindrome (4431221344).

Subtracting from 2220021122 its reverse (2211200222), we obtain a square (8820900 = 2970²).

The spelling of 2220021122 in words is "two billion, two hundred twenty million, twenty-one thousand, one hundred twenty-two".