1222201222 has 16 divisors (see below), whose sum is σ = 2022440400. Its totient is φ = 549303040.

The previous prime is 1222201217. The next prime is 1222201223. The reversal of 1222201222 is 2221022221.

It is a junction number, because it is equal to n+sod(n) for n = 1222201196 and 1222201205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222201223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310147 + ... + 314062.

It is an arithmetic number, because the mean of its divisors is an integer number (126402525).

Almost surely, 2^1222201222 is an apocalyptic number.

1222201222 is a deficient number, since it is larger than the sum of its proper divisors (800239178).

1222201222 is a wasteful number, since it uses less digits than its factorization.

1222201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624311.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1222201222 is about 34959.9945938211. The cubic root of 1222201222 is about 1069.1719864241.

Adding to 1222201222 its reverse (2221022221), we get a palindrome (3443223443).

The spelling of 1222201222 in words is "one billion, two hundred twenty-two million, two hundred one thousand, two hundred twenty-two".