22345012 has 12 divisors (see below), whose sum is σ = 39841956. Its totient is φ = 10961600.

The previous prime is 22345009. The next prime is 22345019. The reversal of 22345012 is 21054322.

It can be written as a sum of positive squares in 2 ways, for example, as 5731236 + 16613776 = 2394^2 + 4076^2 .

It is a super-2 number, since 2×22345012² = 998599122560288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22345019) 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 3 ways as a sum of consecutive naturals, for example, 52489 + ... + 52912.

It is an arithmetic number, because the mean of its divisors is an integer number (3320163).

Almost surely, 2^22345012 is an apocalyptic number.

It is an amenable number.

22345012 is a deficient number, since it is larger than the sum of its proper divisors (17496944).

22345012 is a wasteful number, since it uses less digits than its factorization.

22345012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105458 (or 105456 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 22345012 is about 4727.0510892098. The cubic root of 22345012 is about 281.6610954786.

Adding to 22345012 its reverse (21054322), we get a palindrome (43399334).

The spelling of 22345012 in words is "twenty-two million, three hundred forty-five thousand, twelve".