10020023133221 has 8 divisors (see below), whose sum is σ = 10291162036344. Its totient is φ = 9748901465280.

The previous prime is 10020023133163. The next prime is 10020023133227. The reversal of 10020023133221 is 12233132002001.

It can be written as a sum of positive squares in 4 ways, for example, as 2871025248100 + 7148997885121 = 1694410^2 + 2673761^2 .

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 10020023133221 - 2¹⁸ = 10020022871077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020023133193 and 10020023133202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020023133227) 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, 3125990 + ... + 5460023.

It is an arithmetic number, because the mean of its divisors is an integer number (1286395254543).

Almost surely, 2^{10020023133221} is an apocalyptic number.

It is an amenable number.

10020023133221 is a deficient number, since it is larger than the sum of its proper divisors (271138903123).

10020023133221 is an equidigital number, since it uses as much as digits as its factorization.

10020023133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8617591.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 10020023133221 its reverse (12233132002001), we get a palindrome (22253155135222).

The spelling of 10020023133221 in words is "ten trillion, twenty billion, twenty-three million, one hundred thirty-three thousand, two hundred twenty-one".