220020204001 has 8 divisors (see below), whose sum is σ = 238172531240. Its totient is φ = 202043261952.

The previous prime is 220020203989. The next prime is 220020204007. The reversal of 220020204001 is 100402020022.

It can be written as a sum of positive squares in 4 ways, for example, as 7200371025 + 212819832976 = 84855^2 + 461324^2 .

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 220020204001 - 2¹¹ = 220020201953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220020204007) 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, 43843686 + ... + 43848703.

It is an arithmetic number, because the mean of its divisors is an integer number (29771566405).

Almost surely, 2^220020204001 is an apocalyptic number.

It is an amenable number.

220020204001 is a deficient number, since it is larger than the sum of its proper divisors (18152327239).

220020204001 is a wasteful number, since it uses less digits than its factorization.

220020204001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87692595.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 220020204001 its reverse (100402020022), we get a palindrome (320422224023).

The spelling of 220020204001 in words is "two hundred twenty billion, twenty million, two hundred four thousand, one".