220220200020001 has 4 divisors (see below), whose sum is σ = 220220242830100. Its totient is φ = 220220157209904.

The previous prime is 220220200019987. The next prime is 220220200020011. The reversal of 220220200020001 is 100020002022022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112814647787776 + 107405552232225 = 10621424^2 + 10363665^2 .

It is a cyclic number.

It is not a de Polignac number, because 220220200020001 - 2³¹ = 220218052536353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220220200020011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12436206 + ... + 24394663.

It is an arithmetic number, because the mean of its divisors is an integer number (55055060707525).

Almost surely, 2^{220220200020001} is an apocalyptic number.

It is an amenable number.

220220200020001 is a deficient number, since it is larger than the sum of its proper divisors (42810099).

220220200020001 is an equidigital number, since it uses as much as digits as its factorization.

220220200020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42810098.

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

Adding to 220220200020001 its reverse (100020002022022), we get a palindrome (320240202042023).

The spelling of 220220200020001 in words is "two hundred twenty trillion, two hundred twenty billion, two hundred million, twenty thousand, one".