1220045422 has 12 divisors (see below), whose sum is σ = 1834258608. Its totient is φ = 608628900.

The previous prime is 1220045371. The next prime is 1220045429. The reversal of 1220045422 is 2245400221.

It is a junction number, because it is equal to n+sod(n) for n = 1220045393 and 1220045402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220045429) 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, 651147 + ... + 653017.

It is an arithmetic number, because the mean of its divisors is an integer number (152854884).

Almost surely, 2^1220045422 is an apocalyptic number.

1220045422 is a deficient number, since it is larger than the sum of its proper divisors (614213186).

1220045422 is an frugal number, since it uses more digits than its factorization.

1220045422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015 (or 2444 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1220045422 is about 34929.1486011326. The cubic root of 1220045422 is about 1068.5429908470.

Adding to 1220045422 its reverse (2245400221), we get a palindrome (3465445643).

The spelling of 1220045422 in words is "one billion, two hundred twenty million, forty-five thousand, four hundred twenty-two".