422124021 has 16 divisors (see below), whose sum is σ = 682221120. Its totient is φ = 255832560.

The previous prime is 422124011. The next prime is 422124041. The reversal of 422124021 is 120421224.

422124021 is a `hidden beast` number, since 422 + 1 + 240 + 2 + 1 = 666.

It is not a de Polignac number, because 422124021 - 2⁹ = 422123509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422123985 and 422124003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422124011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710350 + ... + 710943.

It is an arithmetic number, because the mean of its divisors is an integer number (42638820).

Almost surely, 2^422124021 is an apocalyptic number.

It is an amenable number.

422124021 is a deficient number, since it is larger than the sum of its proper divisors (260097099).

422124021 is a wasteful number, since it uses less digits than its factorization.

422124021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421313 (or 1421307 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 422124021 is about 20545.6569863317. The cubic root of 422124021 is about 750.1475389744.

Adding to 422124021 its reverse (120421224), we get a palindrome (542545245).

The spelling of 422124021 in words is "four hundred twenty-two million, one hundred twenty-four thousand, twenty-one".