22001208 has 32 divisors (see below), whose sum is σ = 56284800. Its totient is φ = 7162848.

The previous prime is 22001207. The next prime is 22001209. The reversal of 22001208 is 80210022.

It is an interprime number because it is at equal distance from previous prime (22001207) and next prime (22001209).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001207) 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, 9628 + ... + 11691.

It is an arithmetic number, because the mean of its divisors is an integer number (1758900).

Almost surely, 2^22001208 is an apocalyptic number.

It is an amenable number.

22001208 is an abundant number, since it is smaller than the sum of its proper divisors (34283592).

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

22001208 is a wasteful number, since it uses less digits than its factorization.

22001208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21371 (or 21367 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 22001208 is about 4690.5445312885. The cubic root of 22001208 is about 280.2090615528.

The spelling of 22001208 in words is "twenty-two million, one thousand, two hundred eight".