122403221 has 8 divisors (see below), whose sum is σ = 126561024. Its totient is φ = 118258560.

The previous prime is 122403191. The next prime is 122403257. The reversal of 122403221 is 122304221.

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

It is a cyclic number.

It is not a de Polignac number, because 122403221 - 2⁶ = 122403157 is a prime.

It is a super-2 number, since 2×122403221² = 29965097022349682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122403221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122403821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17930 + ... + 23796.

It is an arithmetic number, because the mean of its divisors is an integer number (15820128).

Almost surely, 2^122403221 is an apocalyptic number.

It is an amenable number.

122403221 is a deficient number, since it is larger than the sum of its proper divisors (4157803).

122403221 is an equidigital number, since it uses as much as digits as its factorization.

122403221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6571.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 122403221 is about 11063.5989171698. The cubic root of 122403221 is about 496.5133713554.

Adding to 122403221 its reverse (122304221), we get a palindrome (244707442).

The spelling of 122403221 in words is "one hundred twenty-two million, four hundred three thousand, two hundred twenty-one".