22022136 has 96 divisors (see below), whose sum is σ = 63180000. Its totient is φ = 6918912.

The previous prime is 22022131. The next prime is 22022153. The reversal of 22022136 is 63122022.

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 (22022131) 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 23 ways as a sum of consecutive naturals, for example, 110565 + ... + 110763.

It is an arithmetic number, because the mean of its divisors is an integer number (658125).

Almost surely, 2^22022136 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 22022136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31590000).

22022136 is an abundant number, since it is smaller than the sum of its proper divisors (41157864).

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

22022136 is a wasteful number, since it uses less digits than its factorization.

22022136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 286 counting only the distinct ones).

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

The square root of 22022136 is about 4692.7748720773. The cubic root of 22022136 is about 280.2978802642.

Adding to 22022136 its reverse (63122022), we get a palindrome (85144158).

It can be divided in two parts, 22022 and 136, that multiplied together give a palindrome (2994992).

The spelling of 22022136 in words is "twenty-two million, twenty-two thousand, one hundred thirty-six".