22012336 has 60 divisors (see below), whose sum is σ = 46677072. Its totient is φ = 10046592.

The previous prime is 22012321. The next prime is 22012337. The reversal of 22012336 is 63321022.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (22012337) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 213661 + ... + 213763.

Almost surely, 2^22012336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22012336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23338536).

22012336 is an abundant number, since it is smaller than the sum of its proper divisors (24664736).

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

22012336 is a wasteful number, since it uses less digits than its factorization.

22012336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 22012336 is about 4691.7305975514. The cubic root of 22012336 is about 280.2562959421.

Adding to 22012336 its reverse (63321022), we get a palindrome (85333358).

The spelling of 22012336 in words is "twenty-two million, twelve thousand, three hundred thirty-six".