10530350450221 has 6 divisors (see below), whose sum is σ = 12249591340110. Its totient is φ = 9026014671576.

The previous prime is 10530350450209. The next prime is 10530350450237. The reversal of 10530350450221 is 12205405303501.

It can be written as a sum of positive squares in only one way, i.e., 9110949849225 + 1419400600996 = 3018435^2 + 1191386^2 .

It is not a de Polignac number, because 10530350450221 - 2⁷ = 10530350450093 is a prime.

It is a super-2 number, since 2×10530350450221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10530350400221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107452555566 + ... + 107452555663.

It is an arithmetic number, because the mean of its divisors is an integer number (2041598556685).

Almost surely, 2^{10530350450221} is an apocalyptic number.

It is an amenable number.

10530350450221 is a deficient number, since it is larger than the sum of its proper divisors (1719240889889).

10530350450221 is an equidigital number, since it uses as much as digits as its factorization.

10530350450221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214905111243 (or 214905111236 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 10530350450221 its reverse (12205405303501), we get a palindrome (22735755753722).

The spelling of 10530350450221 in words is "ten trillion, five hundred thirty billion, three hundred fifty million, four hundred fifty thousand, two hundred twenty-one".