1123222401 has 24 divisors (see below), whose sum is σ = 1862190720. Its totient is φ = 639078336.

The previous prime is 1123222391. The next prime is 1123222421. The reversal of 1123222401 is 1042223211.

It is a happy number.

1123222401 is a `hidden beast` number, since 11 + 232 + 22 + 401 = 666.

It is not a de Polignac number, because 1123222401 - 2⁹ = 1123221889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1123222421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23581 + ... + 52938.

It is an arithmetic number, because the mean of its divisors is an integer number (77591280).

Almost surely, 2^1123222401 is an apocalyptic number.

It is an amenable number.

1123222401 is a deficient number, since it is larger than the sum of its proper divisors (738968319).

1123222401 is a wasteful number, since it uses less digits than its factorization.

1123222401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76765 (or 76762 counting only the distinct ones).

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

The square root of 1123222401 is about 33514.5103052394. The cubic root of 1123222401 is about 1039.4938368411.

Adding to 1123222401 its reverse (1042223211), we get a palindrome (2165445612).

It can be divided in two parts, 11232 and 22401, that added together give a palindrome (33633).

The spelling of 1123222401 in words is "one billion, one hundred twenty-three million, two hundred twenty-two thousand, four hundred one".