801299509922 has 18 divisors (see below), whose sum is σ = 1205134548147. Its totient is φ = 399590797824.

The previous prime is 801299509891. The next prime is 801299509939. The reversal of 801299509922 is 229905992108.

It can be written as a sum of positive squares in 5 ways, for example, as 728481027121 + 72818482801 = 853511^2 + 269849^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=632969.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 730445678 + ... + 730446774.

Almost surely, 2^801299509922 is an apocalyptic number.

801299509922 is a deficient number, since it is larger than the sum of its proper divisors (403835038225).

801299509922 is an frugal number, since it uses more digits than its factorization.

801299509922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350 (or 1676 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 56.

The spelling of 801299509922 in words is "eight hundred one billion, two hundred ninety-nine million, five hundred nine thousand, nine hundred twenty-two".