1155224223452 has 48 divisors (see below), whose sum is σ = 2231754602112. Its totient is φ = 519826168320.

The previous prime is 1155224223449. The next prime is 1155224223557. The reversal of 1155224223452 is 2543224225511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3001613 + ... + 3364539.

It is an arithmetic number, because the mean of its divisors is an integer number (46494887544).

Almost surely, 2^{1155224223452} is an apocalyptic number.

It is an amenable number.

1155224223452 is a deficient number, since it is larger than the sum of its proper divisors (1076530378660).

1155224223452 is a wasteful number, since it uses less digits than its factorization.

1155224223452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364478 (or 364476 counting only the distinct ones).

The product of its digits is 192000, while the sum is 38.

Adding to 1155224223452 its reverse (2543224225511), we get a palindrome (3698448448963).

The spelling of 1155224223452 in words is "one trillion, one hundred fifty-five billion, two hundred twenty-four million, two hundred twenty-three thousand, four hundred fifty-two".