1220201206 has 8 divisors (see below), whose sum is σ = 2091773520. Its totient is φ = 522943368.

The previous prime is 1220201189. The next prime is 1220201249. The reversal of 1220201206 is 6021020221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1220201206.

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, 43578601 + ... + 43578628.

It is an arithmetic number, because the mean of its divisors is an integer number (261471690).

Almost surely, 2^1220201206 is an apocalyptic number.

1220201206 is a deficient number, since it is larger than the sum of its proper divisors (871572314).

1220201206 is an equidigital number, since it uses as much as digits as its factorization.

1220201206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87157238.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1220201206 is about 34931.3785299120. The cubic root of 1220201206 is about 1068.5884686119.

Adding to 1220201206 its reverse (6021020221), we get a palindrome (7241221427).

The spelling of 1220201206 in words is "one billion, two hundred twenty million, two hundred one thousand, two hundred six".