22214052 has 90 divisors (see below), whose sum is σ = 65761878. Its totient is φ = 6322176.

The previous prime is 22214009. The next prime is 22214057. The reversal of 22214052 is 25041222.

It can be written as a sum of positive squares in only one way, i.e., 22127616 + 86436 = 4704^2 + 294^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22214057) 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 29 ways as a sum of consecutive naturals, for example, 86308 + ... + 86564.

Almost surely, 2^22214052 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 22214052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32880939).

22214052 is an abundant number, since it is smaller than the sum of its proper divisors (43547826).

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

22214052 is a wasteful number, since it uses less digits than its factorization.

22214052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 22214052 is about 4713.1785453131. The cubic root of 22214052 is about 281.1097623823.

Adding to 22214052 its reverse (25041222), we get a palindrome (47255274).

The spelling of 22214052 in words is "twenty-two million, two hundred fourteen thousand, fifty-two".