10221310333021 has 4 divisors (see below), whose sum is σ = 10221379893532. Its totient is φ = 10221240772512.

The previous prime is 10221310333007. The next prime is 10221310333033. The reversal of 10221310333021 is 12033301312201.

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 838048702500 + 9383261630521 = 915450^2 + 3063211^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221310333021 - 2³¹ = 10219162849373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10221310332983 and 10221310333001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221310333061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34559376 + ... + 34853881.

It is an arithmetic number, because the mean of its divisors is an integer number (2555344973383).

Almost surely, 2^{10221310333021} is an apocalyptic number.

It is an amenable number.

10221310333021 is a deficient number, since it is larger than the sum of its proper divisors (69560511).

10221310333021 is an equidigital number, since it uses as much as digits as its factorization.

10221310333021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69560510.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 10221310333021 its reverse (12033301312201), we get a palindrome (22254611645222).

The spelling of 10221310333021 in words is "ten trillion, two hundred twenty-one billion, three hundred ten million, three hundred thirty-three thousand, twenty-one".