101320210133221 has 4 divisors (see below), whose sum is σ = 101320619866092. Its totient is φ = 101319800400352.

The previous prime is 101320210133159. The next prime is 101320210133231. The reversal of 101320210133221 is 122331012023101.

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 73365409060321 + 27954801072900 = 8565361^2 + 5287230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101320210133221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101320210133192 and 101320210133201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101320210133231) 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, 204495286 + ... + 204990151.

It is an arithmetic number, because the mean of its divisors is an integer number (25330154966523).

Almost surely, 2^{101320210133221} is an apocalyptic number.

It is an amenable number.

101320210133221 is a deficient number, since it is larger than the sum of its proper divisors (409732871).

101320210133221 is an equidigital number, since it uses as much as digits as its factorization.

101320210133221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409732870.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 101320210133221 its reverse (122331012023101), we get a palindrome (223651222156322).

The spelling of 101320210133221 in words is "one hundred one trillion, three hundred twenty billion, two hundred ten million, one hundred thirty-three thousand, two hundred twenty-one".