22012132 has 6 divisors (see below), whose sum is σ = 38521238. Its totient is φ = 11006064.

The previous prime is 22012129. The next prime is 22012141. The reversal of 22012132 is 23121022.

It can be written as a sum of positive squares in only one way, i.e., 18714276 + 3297856 = 4326^2 + 1816^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2751513 + ... + 2751520.

Almost surely, 2^22012132 is an apocalyptic number.

It is an amenable number.

22012132 is a deficient number, since it is larger than the sum of its proper divisors (16509106).

22012132 is a wasteful number, since it uses less digits than its factorization.

22012132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5503037 (or 5503035 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22012132 is about 4691.7088571223. The cubic root of 22012132 is about 280.2554301781.

Adding to 22012132 its reverse (23121022), we get a palindrome (45133154).

The spelling of 22012132 in words is "twenty-two million, twelve thousand, one hundred thirty-two".