122432421 has 8 divisors (see below), whose sum is σ = 163355200. Its totient is φ = 81565632.

The previous prime is 122432399. The next prime is 122432441. The reversal of 122432421 is 124234221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122432421 - 2⁵ = 122432389 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 (122432441) 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, 8596 + ... + 17853.

It is an arithmetic number, because the mean of its divisors is an integer number (20419400).

Almost surely, 2^122432421 is an apocalyptic number.

It is an amenable number.

122432421 is a deficient number, since it is larger than the sum of its proper divisors (40922779).

122432421 is a wasteful number, since it uses less digits than its factorization.

122432421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27995.

The product of its digits is 768, while the sum is 21.

The square root of 122432421 is about 11064.9184813988. The cubic root of 122432421 is about 496.5528502667.

Adding to 122432421 its reverse (124234221), we get a palindrome (246666642).

The spelling of 122432421 in words is "one hundred twenty-two million, four hundred thirty-two thousand, four hundred twenty-one".