2220030021 has 32 divisors (see below), whose sum is σ = 3263500800. Its totient is φ = 1331225280.

The previous prime is 2220029971. The next prime is 2220030023. The reversal of 2220030021 is 1200300222.

It is not a de Polignac number, because 2220030021 - 2⁹ = 2220029509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220029979 and 2220030006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220030023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1737835 + ... + 1739111.

It is an arithmetic number, because the mean of its divisors is an integer number (101984400).

Almost surely, 2^2220030021 is an apocalyptic number.

It is an amenable number.

2220030021 is a deficient number, since it is larger than the sum of its proper divisors (1043470779).

2220030021 is a wasteful number, since it uses less digits than its factorization.

2220030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2220030021 is about 47117.1945366020. The cubic root of 2220030021 is about 1304.5266303269.

Adding to 2220030021 its reverse (1200300222), we get a palindrome (3420330243).

The spelling of 2220030021 in words is "two billion, two hundred twenty million, thirty thousand, twenty-one".