101222321 has 4 divisors (see below), whose sum is σ = 102168432. Its totient is φ = 100276212.

The previous prime is 101222309. The next prime is 101222339. The reversal of 101222321 is 123222101.

It is a happy number.

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: 123222101 = 211 ⋅583991.

It is a cyclic number.

It is not a de Polignac number, because 101222321 - 2⁶ = 101222257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101222296 and 101222305.

It is not an unprimeable number, because it can be changed into a prime (101222371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472895 + ... + 473108.

It is an arithmetic number, because the mean of its divisors is an integer number (25542108).

Almost surely, 2^101222321 is an apocalyptic number.

It is an amenable number.

101222321 is a deficient number, since it is larger than the sum of its proper divisors (946111).

101222321 is an equidigital number, since it uses as much as digits as its factorization.

101222321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946110.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 101222321 is about 10060.9304241705. The cubic root of 101222321 is about 466.0424003736.

Adding to 101222321 its reverse (123222101), we get a palindrome (224444422).

The spelling of 101222321 in words is "one hundred one million, two hundred twenty-two thousand, three hundred twenty-one".