122421243 has 8 divisors (see below), whose sum is σ = 186546688. Its totient is φ = 69954984.

The previous prime is 122421241. The next prime is 122421281. The reversal of 122421243 is 342124221.

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

It is not a de Polignac number, because 122421243 - 2¹ = 122421241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5829583 = 122421243 / (1 + 2 + 2 + 4 + 2 + 1 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122421241) 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, 2914771 + ... + 2914812.

It is an arithmetic number, because the mean of its divisors is an integer number (23318336).

Almost surely, 2^122421243 is an apocalyptic number.

122421243 is a deficient number, since it is larger than the sum of its proper divisors (64125445).

122421243 is an equidigital number, since it uses as much as digits as its factorization.

122421243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5829593.

The product of its digits is 768, while the sum is 21.

The square root of 122421243 is about 11064.4133599572. The cubic root of 122421243 is about 496.5377381566.

Adding to 122421243 its reverse (342124221), we get a palindrome (464545464).

The spelling of 122421243 in words is "one hundred twenty-two million, four hundred twenty-one thousand, two hundred forty-three".