20122208 has 12 divisors (see below), whose sum is σ = 39615660. Its totient is φ = 10061088.

The previous prime is 20122199. The next prime is 20122213. The reversal of 20122208 is 80222102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314378 + ... + 314441.

It is an arithmetic number, because the mean of its divisors is an integer number (3301305).

Almost surely, 2^20122208 is an apocalyptic number.

It is an amenable number.

20122208 is a deficient number, since it is larger than the sum of its proper divisors (19493452).

20122208 is an equidigital number, since it uses as much as digits as its factorization.

20122208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628829 (or 628821 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 20122208 is about 4485.7784162841. The cubic root of 20122208 is about 271.9935119560.

The spelling of 20122208 in words is "twenty million, one hundred twenty-two thousand, two hundred eight".