1220200406 has 8 divisors (see below), whose sum is σ = 1926632280. Its totient is φ = 577989648.

The previous prime is 1220200369. The next prime is 1220200411. The reversal of 1220200406 is 6040020221.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 16055231 + ... + 16055306.

It is an arithmetic number, because the mean of its divisors is an integer number (240829035).

Almost surely, 2^1220200406 is an apocalyptic number.

1220200406 is a deficient number, since it is larger than the sum of its proper divisors (706431874).

1220200406 is a wasteful number, since it uses less digits than its factorization.

1220200406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32110558.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1220200406 is about 34931.3670788877. The cubic root of 1220200406 is about 1068.5882350791.

Adding to 1220200406 its reverse (6040020221), we get a palindrome (7260220627).

The spelling of 1220200406 in words is "one billion, two hundred twenty million, two hundred thousand, four hundred six".