11221944 has 32 divisors (see below), whose sum is σ = 28267920. Its totient is φ = 3712256.

The previous prime is 11221939. The next prime is 11221949. The reversal of 11221944 is 44912211.

It is an interprime number because it is at equal distance from previous prime (11221939) and next prime (11221949).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221949) 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, 1582 + ... + 4994.

Almost surely, 2^11221944 is an apocalyptic number.

It is an amenable number.

11221944 is an abundant number, since it is smaller than the sum of its proper divisors (17045976).

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

11221944 is a wasteful number, since it uses less digits than its factorization.

11221944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559 (or 3555 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 11221944 is about 3349.9170138975. The cubic root of 11221944 is about 223.8838151726.

The spelling of 11221944 in words is "eleven million, two hundred twenty-one thousand, nine hundred forty-four".