2221104 has 20 divisors (see below), whose sum is σ = 5737976. Its totient is φ = 740352.

The previous prime is 2221097. The next prime is 2221111. The reversal of 2221104 is 4011222.

It is an interprime number because it is at equal distance from previous prime (2221097) and next prime (2221111).

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 2221104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23089 + ... + 23184.

2^2221104 is an apocalyptic number.

2221104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2221104 is an abundant number, since it is smaller than the sum of its proper divisors (3516872).

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

2221104 is a wasteful number, since it uses less digits than its factorization.

2221104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46284 (or 46278 counting only the distinct ones).

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

The square root of 2221104 is about 1490.3368746696. The cubic root of 2221104 is about 130.4736959065.

Adding to 2221104 its reverse (4011222), we get a palindrome (6232326).

It can be divided in two parts, 222 and 1104, that added together give a triangular number (1326 = T₅₁).

The spelling of 2221104 in words is "two million, two hundred twenty-one thousand, one hundred four".