22250691 has 12 divisors (see below), whose sum is σ = 33831720. Its totient is φ = 14052960.

The previous prime is 22250689. The next prime is 22250699. The reversal of 22250691 is 19605222.

It is not a de Polignac number, because 22250691 - 2¹ = 22250689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22250699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64890 + ... + 65231.

It is an arithmetic number, because the mean of its divisors is an integer number (2819310).

Almost surely, 2^22250691 is an apocalyptic number.

22250691 is a deficient number, since it is larger than the sum of its proper divisors (11581029).

22250691 is a wasteful number, since it uses less digits than its factorization.

22250691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130146 (or 130143 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 22250691 is about 4717.0638113131. The cubic root of 22250691 is about 281.2642280210.

The spelling of 22250691 in words is "twenty-two million, two hundred fifty thousand, six hundred ninety-one".