122421245 has 8 divisors (see below), whose sum is σ = 147036384. Its totient is φ = 97849744.

The previous prime is 122421241. The next prime is 122421281. The reversal of 122421245 is 542124221.

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 122421245 - 2² = 122421241 is a prime.

It is a super-3 number, since 3×122421245³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122421245.

It is a congruent 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, 4379 + ... + 16248.

It is an arithmetic number, because the mean of its divisors is an integer number (18379548).

Almost surely, 2^122421245 is an apocalyptic number.

It is an amenable number.

122421245 is a deficient number, since it is larger than the sum of its proper divisors (24615139).

122421245 is a wasteful number, since it uses less digits than its factorization.

122421245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21819.

The product of its digits is 1280, while the sum is 23.

The square root of 122421245 is about 11064.4134503371. The cubic root of 122421245 is about 496.5377408605.

Adding to 122421245 its reverse (542124221), we get a palindrome (664545466).

The spelling of 122421245 in words is "one hundred twenty-two million, four hundred twenty-one thousand, two hundred forty-five".