22442012 has 6 divisors (see below), whose sum is σ = 39273528. Its totient is φ = 11221004.

The previous prime is 22441999. The next prime is 22442029. The reversal of 22442012 is 21024422.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805248 + ... + 2805255.

It is an arithmetic number, because the mean of its divisors is an integer number (6545588).

Almost surely, 2^22442012 is an apocalyptic number.

It is an amenable number.

22442012 is a deficient number, since it is larger than the sum of its proper divisors (16831516).

22442012 is a wasteful number, since it uses less digits than its factorization.

22442012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610507 (or 5610505 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 22442012 is about 4737.3000749372. The cubic root of 22442012 is about 282.0680720264.

Adding to 22442012 its reverse (21024422), we get a palindrome (43466434).

The spelling of 22442012 in words is "twenty-two million, four hundred forty-two thousand, twelve".