22142312 has 16 divisors (see below), whose sum is σ = 42948900. Its totient is φ = 10689280.

The previous prime is 22142299. The next prime is 22142327. The reversal of 22142312 is 21324122.

It can be written as a sum of positive squares in 2 ways, for example, as 21031396 + 1110916 = 4586^2 + 1054^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 47489 + ... + 47952.

Almost surely, 2^22142312 is an apocalyptic number.

It is an amenable number.

22142312 is a deficient number, since it is larger than the sum of its proper divisors (20806588).

22142312 is a wasteful number, since it uses less digits than its factorization.

22142312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95476 (or 95472 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 22142312 is about 4705.5618155540. The cubic root of 22142312 is about 280.8068225602.

Adding to 22142312 its reverse (21324122), we get a palindrome (43466434).

The spelling of 22142312 in words is "twenty-two million, one hundred forty-two thousand, three hundred twelve".