10221321113 has 4 divisors (see below), whose sum is σ = 10280404068. Its totient is φ = 10162238160.

The previous prime is 10221321091. The next prime is 10221321127. The reversal of 10221321113 is 31112312201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9656403289 + 564917824 = 98267^2 + 23768^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221321113 - 2¹² = 10221317017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10221321091 and 10221321100.

It is not an unprimeable number, because it can be changed into a prime (10221321133) 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, 29541218 + ... + 29541563.

It is an arithmetic number, because the mean of its divisors is an integer number (2570101017).

Almost surely, 2^10221321113 is an apocalyptic number.

It is an amenable number.

10221321113 is a deficient number, since it is larger than the sum of its proper divisors (59082955).

10221321113 is an equidigital number, since it uses as much as digits as its factorization.

10221321113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59082954.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10221321113 its reverse (31112312201), we get a palindrome (41333633314).

The spelling of 10221321113 in words is "ten billion, two hundred twenty-one million, three hundred twenty-one thousand, one hundred thirteen".