2220021011 has 12 divisors (see below), whose sum is σ = 2481480000. Its totient is φ = 1983140640.

The previous prime is 2220020993. The next prime is 2220021029. The reversal of 2220021011 is 1101200222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2220020993) and next prime (2220021029).

It is not a de Polignac number, because 2220021011 - 2²² = 2215826707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220020983 and 2220021001.

It is not an unprimeable number, because it can be changed into a prime (2220021061) 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 11 ways as a sum of consecutive naturals, for example, 206636 + ... + 217113.

It is an arithmetic number, because the mean of its divisors is an integer number (206790000).

Almost surely, 2^2220021011 is an apocalyptic number.

2220021011 is a deficient number, since it is larger than the sum of its proper divisors (261458989).

2220021011 is a wasteful number, since it uses less digits than its factorization.

2220021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423806 (or 423793 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2220021011 is about 47117.0989238514. The cubic root of 2220021011 is about 1304.5248655158.

Adding to 2220021011 its reverse (1101200222), we get a palindrome (3321221233).

The spelling of 2220021011 in words is "two billion, two hundred twenty million, twenty-one thousand, eleven".