122848721 has 8 divisors (see below), whose sum is σ = 127584864. Its totient is φ = 118198080.

The previous prime is 122848711. The next prime is 122848729. The reversal of 122848721 is 127848221.

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 122848721 - 2¹⁸ = 122586577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122848729) 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, 18440 + ... + 24201.

It is an arithmetic number, because the mean of its divisors is an integer number (15948108).

Almost surely, 2^122848721 is an apocalyptic number.

It is an amenable number.

122848721 is a deficient number, since it is larger than the sum of its proper divisors (4736143).

122848721 is an equidigital number, since it uses as much as digits as its factorization.

122848721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42751.

The product of its digits is 14336, while the sum is 35.

The square root of 122848721 is about 11083.7142240316. The cubic root of 122848721 is about 497.1150137246.

The spelling of 122848721 in words is "one hundred twenty-two million, eight hundred forty-eight thousand, seven hundred twenty-one".