220001701 has 2 divisors, whose sum is σ = 220001702. Its totient is φ = 220001700.

The previous prime is 220001623. The next prime is 220001729. The reversal of 220001701 is 107100022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178089025 + 41912676 = 13345^2 + 6474^2 .

It is a cyclic number.

It is not a de Polignac number, because 220001701 - 2¹⁹ = 219477413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220001731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110000850 + 110000851.

It is an arithmetic number, because the mean of its divisors is an integer number (110000851).

Almost surely, 2^220001701 is an apocalyptic number.

It is an amenable number.

220001701 is a deficient number, since it is larger than the sum of its proper divisors (1).

220001701 is an equidigital number, since it uses as much as digits as its factorization.

220001701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 220001701 is about 14832.4543147788. The cubic root of 220001701 is about 603.6826295265.

Adding to 220001701 its reverse (107100022), we get a palindrome (327101723).

The spelling of 220001701 in words is "two hundred twenty million, one thousand, seven hundred one".