1020302321221 has 8 divisors (see below), whose sum is σ = 1038307342688. Its totient is φ = 1002338550000.

The previous prime is 1020302321189. The next prime is 1020302321261. The reversal of 1020302321221 is 1221232030201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020302321221 - 2⁵ = 1020302321189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020302321261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10262655 + ... + 10361596.

It is an arithmetic number, because the mean of its divisors is an integer number (129788417836).

Almost surely, 2^{1020302321221} is an apocalyptic number.

It is an amenable number.

1020302321221 is a deficient number, since it is larger than the sum of its proper divisors (18005021467).

1020302321221 is an equidigital number, since it uses as much as digits as its factorization.

1020302321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20625123.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1020302321221 its reverse (1221232030201), we get a palindrome (2241534351422).

The spelling of 1020302321221 in words is "one trillion, twenty billion, three hundred two million, three hundred twenty-one thousand, two hundred twenty-one".