220220202001 has 8 divisors (see below), whose sum is σ = 227829709800. Its totient is φ = 212611741440.

The previous prime is 220220201983. The next prime is 220220202047. The reversal of 220220202001 is 100202022022.

It can be written as a sum of positive squares in 4 ways, for example, as 26430955776 + 193789246225 = 162576^2 + 440215^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-220220202001 is a prime.

It is a super-2 number, since 2×220220202001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220220202071) 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, 178611 + ... + 687271.

It is an arithmetic number, because the mean of its divisors is an integer number (28478713725).

Almost surely, 2^220220202001 is an apocalyptic number.

It is an amenable number.

220220202001 is a deficient number, since it is larger than the sum of its proper divisors (7609507799).

220220202001 is a wasteful number, since it uses less digits than its factorization.

220220202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523619.

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

Adding to 220220202001 its reverse (100202022022), we get a palindrome (320422224023).

The spelling of 220220202001 in words is "two hundred twenty billion, two hundred twenty million, two hundred two thousand, one".