1222434445 has 24 divisors (see below), whose sum is σ = 1553062680. Its totient is φ = 923564160.

The previous prime is 1222434443. The next prime is 1222434461. The reversal of 1222434445 is 5444342221.

It can be written as a sum of positive squares in 4 ways, for example, as 44983849 + 1177450596 = 6707^2 + 34314^2 .

It is not a de Polignac number, because 1222434445 - 2¹ = 1222434443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222434443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 701275 + ... + 703015.

It is an arithmetic number, because the mean of its divisors is an integer number (64710945).

Almost surely, 2^1222434445 is an apocalyptic number.

It is an amenable number.

1222434445 is a deficient number, since it is larger than the sum of its proper divisors (330628235).

1222434445 is a wasteful number, since it uses less digits than its factorization.

1222434445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173 (or 2154 counting only the distinct ones).

The product of its digits is 30720, while the sum is 31.

The square root of 1222434445 is about 34963.3300044489. The cubic root of 1222434445 is about 1069.2399893123.

Adding to 1222434445 its reverse (5444342221), we get a palindrome (6666776666).

The spelling of 1222434445 in words is "one billion, two hundred twenty-two million, four hundred thirty-four thousand, four hundred forty-five".