1222201206 has 12 divisors (see below), whose sum is σ = 2648102652. Its totient is φ = 407400396.

The previous prime is 1222201157. The next prime is 1222201217. The reversal of 1222201206 is 6021022221.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 67900067 = 1222201206 / (1 + 2 + 2 + 2 + 2 + 0 + 1 + 2 + 0 + 6).

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 5 ways as a sum of consecutive naturals, for example, 33950016 + ... + 33950051.

It is an arithmetic number, because the mean of its divisors is an integer number (220675221).

Almost surely, 2^1222201206 is an apocalyptic number.

1222201206 is an abundant number, since it is smaller than the sum of its proper divisors (1425901446).

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

1222201206 is a wasteful number, since it uses less digits than its factorization.

1222201206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67900075 (or 67900072 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1222201206 is about 34959.9943649881. The cubic root of 1222201206 is about 1069.1719817586.

Adding to 1222201206 its reverse (6021022221), we get a palindrome (7243223427).

The spelling of 1222201206 in words is "one billion, two hundred twenty-two million, two hundred one thousand, two hundred six".