10020320220121 has 4 divisors (see below), whose sum is σ = 10455986316672. Its totient is φ = 9584654123572.

The previous prime is 10020320220089. The next prime is 10020320220143. The reversal of 10020320220121 is 12102202302001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10020320220121 - 2⁵ = 10020320220089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020320220095 and 10020320220104.

It is not an unprimeable number, because it can be changed into a prime (10020320220221) 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 3 ways as a sum of consecutive naturals, for example, 217833048241 + ... + 217833048286.

It is an arithmetic number, because the mean of its divisors is an integer number (2613996579168).

Almost surely, 2^{10020320220121} is an apocalyptic number.

It is an amenable number.

10020320220121 is a deficient number, since it is larger than the sum of its proper divisors (435666096551).

10020320220121 is an equidigital number, since it uses as much as digits as its factorization.

10020320220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435666096550.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10020320220121 its reverse (12102202302001), we get a palindrome (22122522522122).

The spelling of 10020320220121 in words is "ten trillion, twenty billion, three hundred twenty million, two hundred twenty thousand, one hundred twenty-one".