22086012 has 48 divisors (see below), whose sum is σ = 57300992. Its totient is φ = 6575040.

The previous prime is 22086007. The next prime is 22086017. The reversal of 22086012 is 21068022.

It is an interprime number because it is at equal distance from previous prime (22086007) and next prime (22086017).

It is a self number, because there is not a number n which added to its sum of digits gives 22086012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22086017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2553 + ... + 7119.

Almost surely, 2^22086012 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 22086012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28650496).

22086012 is an abundant number, since it is smaller than the sum of its proper divisors (35214980).

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

22086012 is a wasteful number, since it uses less digits than its factorization.

22086012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618 (or 4616 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 22086012 is about 4699.5757255310. The cubic root of 22086012 is about 280.5686233708.

The spelling of 22086012 in words is "twenty-two million, eighty-six thousand, twelve".