220202120220001 has 2 divisors, whose sum is σ = 220202120220002. Its totient is φ = 220202120220000.

The previous prime is 220202120219971. The next prime is 220202120220013. The reversal of 220202120220001 is 100022021202022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148612313142225 + 71589807077776 = 12190665^2 + 8461076^2 .

It is a cyclic number.

It is not a de Polignac number, because 220202120220001 - 2⁵ = 220202120219969 is a prime.

It is not a weakly prime, because it can be changed into another prime (220202120220031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110101060110000 + 110101060110001.

It is an arithmetic number, because the mean of its divisors is an integer number (110101060110001).

Almost surely, 2^{220202120220001} is an apocalyptic number.

It is an amenable number.

220202120220001 is a deficient number, since it is larger than the sum of its proper divisors (1).

220202120220001 is an equidigital number, since it uses as much as digits as its factorization.

220202120220001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220202120220001 its reverse (100022021202022), we get a palindrome (320224141422023).

The spelling of 220202120220001 in words is "two hundred twenty trillion, two hundred two billion, one hundred twenty million, two hundred twenty thousand, one".