22202136 has 144 divisors (see below), whose sum is σ = 70401240. Its totient is φ = 6266880.

The previous prime is 22202111. The next prime is 22202137. The reversal of 22202136 is 63120222.

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 (22202137) 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 35 ways as a sum of consecutive naturals, for example, 228840 + ... + 228936.

Almost surely, 2^22202136 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 22202136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35200620).

22202136 is an abundant number, since it is smaller than the sum of its proper divisors (48199104).

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

22202136 is a wasteful number, since it uses less digits than its factorization.

22202136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 22202136 is about 4711.9142606800. The cubic root of 22202136 is about 281.0594893531.

Adding to 22202136 its reverse (63120222), we get a palindrome (85322358).

It can be divided in two parts, 2220 and 2136, that added together give a square (4356 = 66²).

The spelling of 22202136 in words is "twenty-two million, two hundred two thousand, one hundred thirty-six".