10022221121321 has 4 divisors (see below), whose sum is σ = 10022229445572. Its totient is φ = 10022212797072.

The previous prime is 10022221121309. The next prime is 10022221121371. The reversal of 10022221121321 is 12312112222001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7769955551296 + 2252265570025 = 2787464^2 + 1500755^2 .

It is a cyclic number.

It is not a de Polignac number, because 10022221121321 - 2⁶ = 10022221121257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10022221121293 and 10022221121302.

It is not an unprimeable number, because it can be changed into a prime (10022221121371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1972010 + ... + 4892163.

It is an arithmetic number, because the mean of its divisors is an integer number (2505557361393).

Almost surely, 2^{10022221121321} is an apocalyptic number.

It is an amenable number.

10022221121321 is a deficient number, since it is larger than the sum of its proper divisors (8324251).

10022221121321 is an equidigital number, since it uses as much as digits as its factorization.

10022221121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8324250.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 10022221121321 its reverse (12312112222001), we get a palindrome (22334333343322).

The spelling of 10022221121321 in words is "ten trillion, twenty-two billion, two hundred twenty-one million, one hundred twenty-one thousand, three hundred twenty-one".