10221000130021 has 8 divisors (see below), whose sum is σ = 10415418607224. Its totient is φ = 10026639779520.

The previous prime is 10221000129887. The next prime is 10221000130043. The reversal of 10221000130021 is 12003100012201.

It can be written as a sum of positive squares in 4 ways, for example, as 1395436613796 + 8825563516225 = 1181286^2 + 2970785^2 .

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 10221000130021 - 2¹⁷ = 10220999998949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10221000129983 and 10221000130010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221000130321) 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, 14176570 + ... + 14880091.

It is an arithmetic number, because the mean of its divisors is an integer number (1301927325903).

Almost surely, 2^{10221000130021} is an apocalyptic number.

It is an amenable number.

10221000130021 is a deficient number, since it is larger than the sum of its proper divisors (194418477203).

10221000130021 is an equidigital number, since it uses as much as digits as its factorization.

10221000130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29063351.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10221000130021 its reverse (12003100012201), we get a palindrome (22224100142222).

The spelling of 10221000130021 in words is "ten trillion, two hundred twenty-one billion, one hundred thirty thousand, twenty-one".