8211042401 has 2 divisors, whose sum is σ = 8211042402. Its totient is φ = 8211042400.

The previous prime is 8211042377. The next prime is 8211042431. The reversal of 8211042401 is 1042401128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8201113600 + 9928801 = 90560^2 + 3151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8211042401 is a prime.

It is a super-2 number, since 2×8211042401² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8211042431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4105521200 + 4105521201.

It is an arithmetic number, because the mean of its divisors is an integer number (4105521201).

Almost surely, 2^8211042401 is an apocalyptic number.

It is an amenable number.

8211042401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8211042401 is an equidigital number, since it uses as much as digits as its factorization.

8211042401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 8211042401 is about 90614.8023283172. The cubic root of 8211042401 is about 2017.4344451960.

Adding to 8211042401 its reverse (1042401128), we get a palindrome (9253443529).

The spelling of 8211042401 in words is "eight billion, two hundred eleven million, forty-two thousand, four hundred one".