1220344412 has 36 divisors (see below), whose sum is σ = 2508433200. Its totient is φ = 517918464.

The previous prime is 1220344403. The next prime is 1220344421. The reversal of 1220344412 is 2144430221.

It is an interprime number because it is at equal distance from previous prime (1220344403) and next prime (1220344421).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10037 + ... + 50412.

It is an arithmetic number, because the mean of its divisors is an integer number (69678700).

Almost surely, 2^1220344412 is an apocalyptic number.

It is an amenable number.

1220344412 is an abundant number, since it is smaller than the sum of its proper divisors (1288088788).

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

1220344412 is a wasteful number, since it uses less digits than its factorization.

1220344412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60570 (or 60561 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1220344412 is about 34933.4282886750. The cubic root of 1220344412 is about 1068.6302710877.

Adding to 1220344412 its reverse (2144430221), we get a palindrome (3364774633).

The spelling of 1220344412 in words is "one billion, two hundred twenty million, three hundred forty-four thousand, four hundred twelve".