1220004422 has 64 divisors (see below), whose sum is σ = 2467221120. Its totient is φ = 438552576.

The previous prime is 1220004389. The next prime is 1220004437. The reversal of 1220004422 is 2244000221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1220004422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82928 + ... + 96524.

It is an arithmetic number, because the mean of its divisors is an integer number (38550330).

Almost surely, 2^1220004422 is an apocalyptic number.

1220004422 is an abundant number, since it is smaller than the sum of its proper divisors (1247216698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220004422 is a wasteful number, since it uses less digits than its factorization.

1220004422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13665.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1220004422 is about 34928.5616938345. The cubic root of 1220004422 is about 1068.5310211414.

Adding to 1220004422 its reverse (2244000221), we get a palindrome (3464004643).

The spelling of 1220004422 in words is "one billion, two hundred twenty million, four thousand, four hundred twenty-two".