422445121 has 12 divisors (see below), whose sum is σ = 520323588. Its totient is φ = 340795392.

The previous prime is 422445119. The next prime is 422445143. The reversal of 422445121 is 121544224.

It can be written as a sum of positive squares in 2 ways, for example, as 117418896 + 305026225 = 10836^2 + 17465^2 .

It is not a de Polignac number, because 422445121 - 2¹ = 422445119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422445151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252736 + ... + 254401.

It is an arithmetic number, because the mean of its divisors is an integer number (43360299).

Almost surely, 2^422445121 is an apocalyptic number.

It is an amenable number.

422445121 is a deficient number, since it is larger than the sum of its proper divisors (97878467).

422445121 is a wasteful number, since it uses less digits than its factorization.

422445121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507168 (or 507161 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 422445121 is about 20553.4698043907. The cubic root of 422445121 is about 750.3376974059.

Adding to 422445121 its reverse (121544224), we get a palindrome (543989345).

The spelling of 422445121 in words is "four hundred twenty-two million, four hundred forty-five thousand, one hundred twenty-one".