220000000001 has 2 divisors, whose sum is σ = 220000000002. Its totient is φ = 220000000000.

The previous prime is 219999999977. The next prime is 220000000021. The reversal of 220000000001 is 100000000022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216801984400 + 3198015601 = 465620^2 + 56551^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220000000001 is a prime.

It is not a weakly prime, because it can be changed into another prime (220000000021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110000000000 + 110000000001.

It is an arithmetic number, because the mean of its divisors is an integer number (110000000001).

Almost surely, 2^220000000001 is an apocalyptic number.

It is an amenable number.

220000000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

220000000001 is an equidigital number, since it uses as much as digits as its factorization.

220000000001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 5.

Adding to 220000000001 its reverse (100000000022), we get a palindrome (320000000023).

The spelling of 220000000001 in words is "two hundred twenty billion, one", and thus it is an aban number.