22087112 has 8 divisors (see below), whose sum is σ = 41413350. Its totient is φ = 11043552.

The previous prime is 22087111. The next prime is 22087127. The reversal of 22087112 is 21178022.

It can be written as a sum of positive squares in only one way, i.e., 14546596 + 7540516 = 3814^2 + 2746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (22087111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1380437 + ... + 1380452.

Almost surely, 2^22087112 is an apocalyptic number.

It is an amenable number.

22087112 is a deficient number, since it is larger than the sum of its proper divisors (19326238).

22087112 is a wasteful number, since it uses less digits than its factorization.

22087112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760895 (or 2760891 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 22087112 is about 4699.6927559150. The cubic root of 22087112 is about 280.5732812264.

The spelling of 22087112 in words is "twenty-two million, eighty-seven thousand, one hundred twelve".