421122231 has 6 divisors (see below), whose sum is σ = 608287680. Its totient is φ = 280748148.

The previous prime is 421122187. The next prime is 421122287. The reversal of 421122231 is 132221124.

It is a happy number.

421122231 is a `hidden beast` number, since 421 + 12 + 2 + 231 = 666.

It is not a de Polignac number, because 421122231 - 2⁶ = 421122167 is a prime.

It is a super-2 number, since 2×421122231² = 354687866884834722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421122131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23395671 + ... + 23395688.

It is an arithmetic number, because the mean of its divisors is an integer number (101381280).

Almost surely, 2^421122231 is an apocalyptic number.

421122231 is a deficient number, since it is larger than the sum of its proper divisors (187165449).

421122231 is a wasteful number, since it uses less digits than its factorization.

421122231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46791365 (or 46791362 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 421122231 is about 20521.2628997340. The cubic root of 421122231 is about 749.5536490805.

Adding to 421122231 its reverse (132221124), we get a palindrome (553343355).

The spelling of 421122231 in words is "four hundred twenty-one million, one hundred twenty-two thousand, two hundred thirty-one".