1182218225 has 12 divisors (see below), whose sum is σ = 1472359260. Its totient is φ = 941640000.

The previous prime is 1182218203. The next prime is 1182218237. The reversal of 1182218225 is 5228122811.

It can be written as a sum of positive squares in 6 ways, for example, as 143832049 + 1038386176 = 11993^2 + 32224^2 .

It is not a de Polignac number, because 1182218225 - 2¹⁴ = 1182201841 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1182218191 and 1182218200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97526 + ... + 108975.

It is an arithmetic number, because the mean of its divisors is an integer number (122696605).

Almost surely, 2^1182218225 is an apocalyptic number.

It is an amenable number.

1182218225 is a deficient number, since it is larger than the sum of its proper divisors (290141035).

1182218225 is a wasteful number, since it uses less digits than its factorization.

1182218225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206740 (or 206735 counting only the distinct ones).

The product of its digits is 5120, while the sum is 32.

The square root of 1182218225 is about 34383.4004281136. The cubic root of 1182218225 is about 1057.3835508628.

The spelling of 1182218225 in words is "one billion, one hundred eighty-two million, two hundred eighteen thousand, two hundred twenty-five".