2220020001 has 16 divisors (see below), whose sum is σ = 3330553600. Its totient is φ = 1461277584.

The previous prime is 2220019981. The next prime is 2220020003. The reversal of 2220020001 is 1000200222.

It is not a de Polignac number, because 2220020001 - 2⁶ = 2220019937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220020003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518266 + ... + 522531.

It is an arithmetic number, because the mean of its divisors is an integer number (208159600).

Almost surely, 2^2220020001 is an apocalyptic number.

It is an amenable number.

2220020001 is a deficient number, since it is larger than the sum of its proper divisors (1110533599).

2220020001 is a wasteful number, since it uses less digits than its factorization.

2220020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040885 (or 1040879 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2220020001 is about 47117.0882058728. The cubic root of 2220020001 is about 1304.5246676843.

Adding to 2220020001 its reverse (1000200222), we get a palindrome (3220220223).

The spelling of 2220020001 in words is "two billion, two hundred twenty million, twenty thousand, one".