1222008 has 32 divisors (see below), whose sum is σ = 3110400. Its totient is φ = 399968.

The previous prime is 1222003. The next prime is 1222019. The reversal of 1222008 is 8002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222003) 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, 985 + ... + 1847.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

2^1222008 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 1222008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555200).

1222008 is an abundant number, since it is smaller than the sum of its proper divisors (1888392).

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

1222008 is a wasteful number, since it uses less digits than its factorization.

1222008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931 (or 927 counting only the distinct ones).

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

The square root of 1222008 is about 1105.4447068940. Note that the first 3 decimals coincide. The cubic root of 1222008 is about 106.9115640428.

Adding to 1222008 its reverse (8002221), we get a palindrome (9224229).

The spelling of 1222008 in words is "one million, two hundred twenty-two thousand, eight".