1131231222232 has 32 divisors (see below), whose sum is σ = 2213343439200. Its totient is φ = 541007748864.

The previous prime is 1131231222211. The next prime is 1131231222311. The reversal of 1131231222232 is 2322221321311.

It is a junction number, because it is equal to n+sod(n) for n = 1131231222197 and 1131231222206.

It is a congruent number.

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, 8320948 + ... + 8455804.

It is an arithmetic number, because the mean of its divisors is an integer number (69166982475).

Almost surely, 2^{1131231222232} is an apocalyptic number.

It is an amenable number.

1131231222232 is a deficient number, since it is larger than the sum of its proper divisors (1082112216968).

1131231222232 is a wasteful number, since it uses less digits than its factorization.

1131231222232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180475 (or 180471 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

Adding to 1131231222232 its reverse (2322221321311), we get a palindrome (3453452543543).

The spelling of 1131231222232 in words is "one trillion, one hundred thirty-one billion, two hundred thirty-one million, two hundred twenty-two thousand, two hundred thirty-two".