123222101 has 4 divisors (see below), whose sum is σ = 123806304. Its totient is φ = 122637900.

The previous prime is 123222089. The next prime is 123222139. The reversal of 123222101 is 101222321.

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: 101222321 = 107 ⋅946003.

It is a cyclic number.

It is not a de Polignac number, because 123222101 - 2⁶ = 123222037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123222161) 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 3 ways as a sum of consecutive naturals, for example, 291785 + ... + 292206.

It is an arithmetic number, because the mean of its divisors is an integer number (30951576).

Almost surely, 2^123222101 is an apocalyptic number.

It is an amenable number.

123222101 is a deficient number, since it is larger than the sum of its proper divisors (584203).

123222101 is an equidigital number, since it uses as much as digits as its factorization.

123222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584202.

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

The square root of 123222101 is about 11100.5450767068. The cubic root of 123222101 is about 497.6181394983.

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

The spelling of 123222101 in words is "one hundred twenty-three million, two hundred twenty-two thousand, one hundred one".