122346721 has 8 divisors (see below), whose sum is σ = 140080320. Its totient is φ = 104677008.

The previous prime is 122346713. The next prime is 122346727. The reversal of 122346721 is 127643221.

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 122346721 - 2³ = 122346713 is a prime.

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 122346721.

It is not an unprimeable number, because it can be changed into a prime (122346727) 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, 11791 + ... + 19588.

It is an arithmetic number, because the mean of its divisors is an integer number (17510040).

Almost surely, 2^122346721 is an apocalyptic number.

It is an amenable number.

122346721 is a deficient number, since it is larger than the sum of its proper divisors (17733599).

122346721 is an equidigital number, since it uses as much as digits as its factorization.

122346721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31943.

The product of its digits is 4032, while the sum is 28.

The square root of 122346721 is about 11061.0452037771. The cubic root of 122346721 is about 496.4369645346.

Adding to 122346721 its reverse (127643221), we get a palindrome (249989942).

The spelling of 122346721 in words is "one hundred twenty-two million, three hundred forty-six thousand, seven hundred twenty-one".