220020001 has 8 divisors (see below), whose sum is σ = 243091584. Its totient is φ = 198073920.

The previous prime is 220019993. The next prime is 220020011. The reversal of 220020001 is 100020022.

It is a happy number.

220020001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220020001 - 2³ = 220019993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220020011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280965 + ... + 281746.

It is an arithmetic number, because the mean of its divisors is an integer number (30386448).

Almost surely, 2^220020001 is an apocalyptic number.

It is an amenable number.

220020001 is a deficient number, since it is larger than the sum of its proper divisors (23071583).

220020001 is a wasteful number, since it uses less digits than its factorization.

220020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562751.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 220020001 is about 14833.0711924402. The cubic root of 220020001 is about 603.6993674059.

Adding to 220020001 its reverse (100020022), we get a palindrome (320040023).

It can be divided in two parts, 2200 and 20001, that added together give a square (22201 = 149²).

The spelling of 220020001 in words is "two hundred twenty million, twenty thousand, one".