1222535236 has 48 divisors (see below), whose sum is σ = 2407958784. Its totient is φ = 539352576.

The previous prime is 1222535233. The next prime is 1222535243. The reversal of 1222535236 is 6325352221.

It is a junction number, because it is equal to n+sod(n) for n = 1222535198 and 1222535207.

It is not an unprimeable number, because it can be changed into a prime (1222535233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99276 + ... + 110908.

It is an arithmetic number, because the mean of its divisors is an integer number (50165808).

Almost surely, 2^1222535236 is an apocalyptic number.

It is an amenable number.

1222535236 is a deficient number, since it is larger than the sum of its proper divisors (1185423548).

1222535236 is a wasteful number, since it uses less digits than its factorization.

1222535236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11740 (or 11738 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 1222535236 is about 34964.7713563238. The cubic root of 1222535236 is about 1069.2693751569.

Adding to 1222535236 its reverse (6325352221), we get a palindrome (7547887457).

The spelling of 1222535236 in words is "one billion, two hundred twenty-two million, five hundred thirty-five thousand, two hundred thirty-six".