1222104 has 32 divisors (see below), whose sum is σ = 3291120. Its totient is φ = 375936.

The previous prime is 1222097. The next prime is 1222129. The reversal of 1222104 is 4012221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1222104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1647 + ... + 2270.

2^1222104 is an apocalyptic number.

It is an amenable number.

1222104 is an abundant number, since it is smaller than the sum of its proper divisors (2069016).

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

1222104 is a wasteful number, since it uses less digits than its factorization.

1222104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939 (or 3935 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1222104 is about 1105.4881274803. The cubic root of 1222104 is about 106.9143635993.

Adding to 1222104 its reverse (4012221), we get a palindrome (5234325).

It can be divided in two parts, 1222 and 104, that added together give a triangular number (1326 = T₅₁).

The spelling of 1222104 in words is "one million, two hundred twenty-two thousand, one hundred four".