801225040129 has 2 divisors, whose sum is σ = 801225040130. Its totient is φ = 801225040128.

The previous prime is 801225040039. The next prime is 801225040151. The reversal of 801225040129 is 921040522108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 801141354225 + 83685904 = 895065^2 + 9148^2 .

It is a cyclic number.

It is not a de Polignac number, because 801225040129 - 2¹⁵ = 801225007361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 801225040094 and 801225040103.

It is not a weakly prime, because it can be changed into another prime (801225040159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400612520064 + 400612520065.

It is an arithmetic number, because the mean of its divisors is an integer number (400612520065).

Almost surely, 2^801225040129 is an apocalyptic number.

It is an amenable number.

801225040129 is a deficient number, since it is larger than the sum of its proper divisors (1).

801225040129 is an equidigital number, since it uses as much as digits as its factorization.

801225040129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 801225040129 in words is "eight hundred one billion, two hundred twenty-five million, forty thousand, one hundred twenty-nine".