122421315 has 16 divisors (see below), whose sum is σ = 196012800. Its totient is φ = 65245152.

The previous prime is 122421311. The next prime is 122421317. The reversal of 122421315 is 513124221.

It is not a de Polignac number, because 122421315 - 2² = 122421311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122421291 and 122421300.

It is not an unprimeable number, because it can be changed into a prime (122421311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35226 + ... + 38544.

It is an arithmetic number, because the mean of its divisors is an integer number (12250800).

Almost surely, 2^122421315 is an apocalyptic number.

122421315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122421315 is a deficient number, since it is larger than the sum of its proper divisors (73591485).

122421315 is a wasteful number, since it uses less digits than its factorization.

122421315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5786.

The product of its digits is 480, while the sum is 21.

The square root of 122421315 is about 11064.4166136313. The cubic root of 122421315 is about 496.5378355000.

Adding to 122421315 its reverse (513124221), we get a palindrome (635545536).

The spelling of 122421315 in words is "one hundred twenty-two million, four hundred twenty-one thousand, three hundred fifteen".