122432424421 has 4 divisors (see below), whose sum is σ = 122433742144. Its totient is φ = 122431106700.

The previous prime is 122432424419. The next prime is 122432424449. The reversal of 122432424421 is 124424234221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 124424234221 = 7 ⋅17774890603.

It is a cyclic number.

It is not a de Polignac number, because 122432424421 - 2¹ = 122432424419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122432424481) 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, 507975 + ... + 709156.

It is an arithmetic number, because the mean of its divisors is an integer number (30608435536).

Almost surely, 2^122432424421 is an apocalyptic number.

It is an amenable number.

122432424421 is a deficient number, since it is larger than the sum of its proper divisors (1317723).

122432424421 is a wasteful number, since it uses less digits than its factorization.

122432424421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317722.

The product of its digits is 24576, while the sum is 31.

Adding to 122432424421 its reverse (124424234221), we get a palindrome (246856658642).

The spelling of 122432424421 in words is "one hundred twenty-two billion, four hundred thirty-two million, four hundred twenty-four thousand, four hundred twenty-one".