22421112 has 64 divisors (see below), whose sum is σ = 65809920. Its totient is φ = 6231168.

The previous prime is 22421111. The next prime is 22421123. The reversal of 22421112 is 21112422.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22421091 and 22421100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4413 + ... + 8019.

It is an arithmetic number, because the mean of its divisors is an integer number (1028280).

Almost surely, 2^22421112 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 22421112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32904960).

22421112 is an abundant number, since it is smaller than the sum of its proper divisors (43388808).

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

22421112 is a wasteful number, since it uses less digits than its factorization.

22421112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660 (or 3656 counting only the distinct ones).

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

The square root of 22421112 is about 4735.0936632764. The cubic root of 22421112 is about 281.9804825283.

Adding to 22421112 its reverse (21112422), we get a palindrome (43533534).

It can be divided in two parts, 22421 and 112, that multiplied together give a palindrome (2511152).

The spelling of 22421112 in words is "twenty-two million, four hundred twenty-one thousand, one hundred twelve".