22211652 has 36 divisors (see below), whose sum is σ = 54194000. Its totient is φ = 7079952.

The previous prime is 22211621. The next prime is 22211653. The reversal of 22211652 is 25611222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22211653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4599 + ... + 8097.

Almost surely, 2^22211652 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 22211652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27097000).

22211652 is an abundant number, since it is smaller than the sum of its proper divisors (31982348).

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

22211652 is a wasteful number, since it uses less digits than its factorization.

22211652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552 (or 3527 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 22211652 is about 4712.9239331863. The cubic root of 22211652 is about 281.0996383441.

Adding to 22211652 its reverse (25611222), we get a palindrome (47822874).

The spelling of 22211652 in words is "twenty-two million, two hundred eleven thousand, six hundred fifty-two".