1225532232 has 48 divisors (see below), whose sum is σ = 3321181500. Its totient is φ = 408260736.

The previous prime is 1225532221. The next prime is 1225532233. The reversal of 1225532232 is 2322355221.

1225532232 is a `hidden beast` number, since 122 + 5 + 532 + 2 + 3 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 886014756 + 339517476 = 29766^2 + 18426^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1225532196 and 1225532205.

It is not an unprimeable number, because it can be changed into a prime (1225532233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141894 + ... + 150282.

Almost surely, 2^1225532232 is an apocalyptic number.

1225532232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1225532232 is an abundant number, since it is smaller than the sum of its proper divisors (2095649268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225532232 is a wasteful number, since it uses less digits than its factorization.

1225532232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10430 (or 10423 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 1225532232 is about 35007.6024886024. The cubic root of 1225532232 is about 1070.1424191015.

Adding to 1225532232 its reverse (2322355221), we get a palindrome (3547887453).

The spelling of 1225532232 in words is "one billion, two hundred twenty-five million, five hundred thirty-two thousand, two hundred thirty-two".