220222222001 has 6 divisors (see below), whose sum is σ = 233938485270. Its totient is φ = 207267973376.

The previous prime is 220222221971. The next prime is 220222222007. The reversal of 220222222001 is 100222222022.

It can be written as a sum of positive squares in 3 ways, for example, as 101648742976 + 118573479025 = 318824^2 + 344345^2 .

It is not a de Polignac number, because 220222222001 - 2¹⁴ = 220222205617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220222222007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 381007016 + ... + 381007593.

It is an arithmetic number, because the mean of its divisors is an integer number (38989747545).

Almost surely, 2^220222222001 is an apocalyptic number.

It is an amenable number.

220222222001 is a deficient number, since it is larger than the sum of its proper divisors (13716263269).

220222222001 is an equidigital number, since it uses as much as digits as its factorization.

220222222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762014643 (or 762014626 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 220222222001 its reverse (100222222022), we get a palindrome (320444444023).

The spelling of 220222222001 in words is "two hundred twenty billion, two hundred twenty-two million, two hundred twenty-two thousand, one".