1222204012 has 12 divisors (see below), whose sum is σ = 2144817360. Its totient is φ = 609399056.

The previous prime is 1222204003. The next prime is 1222204037. The reversal of 1222204012 is 2104022221.

It is a super-2 number, since 2×1222204012² = 2987565293897792288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424123 + ... + 426994.

It is an arithmetic number, because the mean of its divisors is an integer number (178734780).

Almost surely, 2^1222204012 is an apocalyptic number.

It is an amenable number.

1222204012 is a deficient number, since it is larger than the sum of its proper divisors (922613348).

1222204012 is a wasteful number, since it uses less digits than its factorization.

1222204012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851480 (or 851478 counting only the distinct ones).

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

The square root of 1222204012 is about 34960.0344965505. The cubic root of 1222204012 is about 1069.1727999802.

Adding to 1222204012 its reverse (2104022221), we get a palindrome (3326226233).

The spelling of 1222204012 in words is "one billion, two hundred twenty-two million, two hundred four thousand, twelve".