122424421 has 4 divisors (see below), whose sum is σ = 139913632. Its totient is φ = 104935212.

The previous prime is 122424413. The next prime is 122424427. The reversal of 122424421 is 124424221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122424421 - 2³ = 122424413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122424392 and 122424401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122424427) 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, 8744595 + ... + 8744608.

It is an arithmetic number, because the mean of its divisors is an integer number (34978408).

Almost surely, 2^122424421 is an apocalyptic number.

It is an amenable number.

122424421 is a deficient number, since it is larger than the sum of its proper divisors (17489211).

122424421 is an equidigital number, since it uses as much as digits as its factorization.

122424421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17489210.

The product of its digits is 1024, while the sum is 22.

The square root of 122424421 is about 11064.5569726040. The cubic root of 122424421 is about 496.5420347509.

Adding to 122424421 its reverse (124424221), we get a palindrome (246848642).

The spelling of 122424421 in words is "one hundred twenty-two million, four hundred twenty-four thousand, four hundred twenty-one".