100022321 has 4 divisors (see below), whose sum is σ = 114311232. Its totient is φ = 85733412.

The previous prime is 100022311. The next prime is 100022323. The reversal of 100022321 is 123220001.

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: 123220001 = 883 ⋅139547.

It is a cyclic number.

It is not a de Polignac number, because 100022321 - 2¹⁰ = 100021297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100022323) 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, 7144445 + ... + 7144458.

It is an arithmetic number, because the mean of its divisors is an integer number (28577808).

Almost surely, 2^100022321 is an apocalyptic number.

It is an amenable number.

100022321 is a deficient number, since it is larger than the sum of its proper divisors (14288911).

100022321 is an equidigital number, since it uses as much as digits as its factorization.

100022321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14288910.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 100022321 is about 10001.1159877286. The cubic root of 100022321 is about 464.1934157602.

Adding to 100022321 its reverse (123220001), we get a palindrome (223242322).

The spelling of 100022321 in words is "one hundred million, twenty-two thousand, three hundred twenty-one".