220220011001 has 4 divisors (see below), whose sum is σ = 229794794112. Its totient is φ = 210645227892.

The previous prime is 220220010971. The next prime is 220220011009. The reversal of 220220011001 is 100110022022.

It is a happy number.

220220011001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220220011001 - 2²² = 220215816697 is a prime.

It is a super-2 number, since 2×220220011001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220220011009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4787391521 + ... + 4787391566.

It is an arithmetic number, because the mean of its divisors is an integer number (57448698528).

Almost surely, 2^220220011001 is an apocalyptic number.

It is an amenable number.

220220011001 is a deficient number, since it is larger than the sum of its proper divisors (9574783111).

220220011001 is an equidigital number, since it uses as much as digits as its factorization.

220220011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9574783110.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 220220011001 its reverse (100110022022), we get a palindrome (320330033023).

The spelling of 220220011001 in words is "two hundred twenty billion, two hundred twenty million, eleven thousand, one".