122421113 has 4 divisors (see below), whose sum is σ = 122504820. Its totient is φ = 122337408.

The previous prime is 122421109. The next prime is 122421133. The reversal of 122421113 is 311124221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14531344 + 107889769 = 3812^2 + 10387^2 .

It is a cyclic number.

It is not a de Polignac number, because 122421113 - 2² = 122421109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122421091 and 122421100.

It is not an unprimeable number, because it can be changed into a prime (122421133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39620 + ... + 42597.

It is an arithmetic number, because the mean of its divisors is an integer number (30626205).

Almost surely, 2^122421113 is an apocalyptic number.

It is an amenable number.

122421113 is a deficient number, since it is larger than the sum of its proper divisors (83707).

122421113 is an equidigital number, since it uses as much as digits as its factorization.

122421113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83706.

The product of its digits is 96, while the sum is 17.

The square root of 122421113 is about 11064.4074852655. The cubic root of 122421113 is about 496.5375623975.

Adding to 122421113 its reverse (311124221), we get a palindrome (433545334).

The spelling of 122421113 in words is "one hundred twenty-two million, four hundred twenty-one thousand, one hundred thirteen".