801020221231 has 32 divisors (see below), whose sum is σ = 881907886080. Its totient is φ = 724161984000.

The previous prime is 801020221219. The next prime is 801020221249. The reversal of 801020221231 is 132122020108.

It is a cyclic number.

It is not a de Polignac number, because 801020221231 - 2³⁷ = 663581267759 is a prime.

It is a super-2 number, since 2×801020221231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801020221201) 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 in 31 ways as a sum of consecutive naturals, for example, 83862906 + ... + 83872456.

It is an arithmetic number, because the mean of its divisors is an integer number (27559621440).

Almost surely, 2^801020221231 is an apocalyptic number.

801020221231 is a deficient number, since it is larger than the sum of its proper divisors (80887664849).

801020221231 is a wasteful number, since it uses less digits than its factorization.

801020221231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10455.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 801020221231 its reverse (132122020108), we get a palindrome (933142241339).

The spelling of 801020221231 in words is "eight hundred one billion, twenty million, two hundred twenty-one thousand, two hundred thirty-one".