1222111312232 has 8 divisors (see below), whose sum is σ = 2291458710450. Its totient is φ = 611055656112.

The previous prime is 1222111312211. The next prime is 1222111312241. The reversal of 1222111312232 is 2322131112221.

It can be written as a sum of positive squares in only one way, i.e., 1028410979236 + 193700332996 = 1014106^2 + 440114^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1222111312198 and 1222111312207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76381957007 + ... + 76381957022.

Almost surely, 2^{1222111312232} is an apocalyptic number.

It is an amenable number.

1222111312232 is a deficient number, since it is larger than the sum of its proper divisors (1069347398218).

1222111312232 is a wasteful number, since it uses less digits than its factorization.

1222111312232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152763914035 (or 152763914031 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 1222111312232 its reverse (2322131112221), we get a palindrome (3544242424453).

The spelling of 1222111312232 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, three hundred twelve thousand, two hundred thirty-two".