1222203112 has 32 divisors (see below), whose sum is σ = 2528111880. Its totient is φ = 550333440.

The previous prime is 1222203077. The next prime is 1222203127. The reversal of 1222203112 is 2113022221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 587868516 + 634334596 = 24246^2 + 25186^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139053 + ... + 147580.

Almost surely, 2^1222203112 is an apocalyptic number.

It is an amenable number.

1222203112 is an abundant number, since it is smaller than the sum of its proper divisors (1305908768).

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

1222203112 is a wasteful number, since it uses less digits than its factorization.

1222203112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286693 (or 286689 counting only the distinct ones).

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

The square root of 1222203112 is about 34960.0216247073. The cubic root of 1222203112 is about 1069.1725375429.

Adding to 1222203112 its reverse (2113022221), we get a palindrome (3335225333).

The spelling of 1222203112 in words is "one billion, two hundred twenty-two million, two hundred three thousand, one hundred twelve".