101010221321 has 4 divisors (see below), whose sum is σ = 101291587200. Its totient is φ = 100728855444.

The previous prime is 101010221311. The next prime is 101010221327. The reversal of 101010221321 is 123122010101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123122010101 = 1471 ⋅83699531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101010221321 is a prime.

It is a super-2 number, since 2×101010221321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101010221296 and 101010221305.

It is not an unprimeable number, because it can be changed into a prime (101010221327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140682401 + ... + 140683118.

It is an arithmetic number, because the mean of its divisors is an integer number (25322896800).

Almost surely, 2^101010221321 is an apocalyptic number.

It is an amenable number.

101010221321 is a deficient number, since it is larger than the sum of its proper divisors (281365879).

101010221321 is an equidigital number, since it uses as much as digits as its factorization.

101010221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281365878.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 101010221321 its reverse (123122010101), we get a palindrome (224132231422).

The spelling of 101010221321 in words is "one hundred one billion, ten million, two hundred twenty-one thousand, three hundred twenty-one".