122100321 has 8 divisors (see below), whose sum is σ = 186057664. Its totient is φ = 69771600.

The previous prime is 122100317. The next prime is 122100343. The reversal of 122100321 is 123001221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122100321 - 2² = 122100317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122100297 and 122100306.

It is not an unprimeable number, because it can be changed into a prime (122100301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2907130 + ... + 2907171.

It is an arithmetic number, because the mean of its divisors is an integer number (23257208).

Almost surely, 2^122100321 is an apocalyptic number.

It is an amenable number.

122100321 is a deficient number, since it is larger than the sum of its proper divisors (63957343).

122100321 is an equidigital number, since it uses as much as digits as its factorization.

122100321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5814311.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 122100321 is about 11049.9014022750. The cubic root of 122100321 is about 496.1034743905.

Adding to 122100321 its reverse (123001221), we get a palindrome (245101542).

The spelling of 122100321 in words is "one hundred twenty-two million, one hundred thousand, three hundred twenty-one".