1002221302331 has 4 divisors (see below), whose sum is σ = 1007820304200. Its totient is φ = 996622300464.

The previous prime is 1002221302307. The next prime is 1002221302339. The reversal of 1002221302331 is 1332031222001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002221302331 - 2³⁴ = 985041433147 is a prime.

It is a super-2 number, since 2×1002221302331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002221302339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2799500666 + ... + 2799501023.

It is an arithmetic number, because the mean of its divisors is an integer number (251955076050).

Almost surely, 2^{1002221302331} is an apocalyptic number.

1002221302331 is a deficient number, since it is larger than the sum of its proper divisors (5599001869).

1002221302331 is an equidigital number, since it uses as much as digits as its factorization.

1002221302331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5599001868.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1002221302331 its reverse (1332031222001), we get a palindrome (2334252524332).

The spelling of 1002221302331 in words is "one trillion, two billion, two hundred twenty-one million, three hundred two thousand, three hundred thirty-one".