1220434412 has 12 divisors (see below), whose sum is σ = 2204655936. Its totient is φ = 590532720.

The previous prime is 1220434399. The next prime is 1220434421. The reversal of 1220434412 is 2144340221.

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 3 ways as a sum of consecutive naturals, for example, 4920983 + ... + 4921230.

It is an arithmetic number, because the mean of its divisors is an integer number (183721328).

Almost surely, 2^1220434412 is an apocalyptic number.

It is an amenable number.

1220434412 is a deficient number, since it is larger than the sum of its proper divisors (984221524).

1220434412 is a wasteful number, since it uses less digits than its factorization.

1220434412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9842248 (or 9842246 counting only the distinct ones).

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

The square root of 1220434412 is about 34934.7164293629. The cubic root of 1220434412 is about 1068.6565408192.

Adding to 1220434412 its reverse (2144340221), we get a palindrome (3364774633).

The spelling of 1220434412 in words is "one billion, two hundred twenty million, four hundred thirty-four thousand, four hundred twelve".