22303012 has 24 divisors (see below), whose sum is σ = 40626432. Its totient is φ = 10701600.

The previous prime is 22303007. The next prime is 22303019. The reversal of 22303012 is 21030322.

It is a happy number.

22303012 is nontrivially palindromic in base 3.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 22302983 and 22303001.

It is not an unprimeable number, because it can be changed into a prime (22303019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15558 + ... + 16930.

It is an arithmetic number, because the mean of its divisors is an integer number (1692768).

Almost surely, 2^22303012 is an apocalyptic number.

It is an amenable number.

22303012 is a deficient number, since it is larger than the sum of its proper divisors (18323420).

22303012 is a wasteful number, since it uses less digits than its factorization.

22303012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539 (or 1537 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 22303012 is about 4722.6064837121. The cubic root of 22303012 is about 281.4845134065.

Adding to 22303012 its reverse (21030322), we get a palindrome (43333334).

The spelling of 22303012 in words is "twenty-two million, three hundred three thousand, twelve".