22136100 has 144 divisors (see below), whose sum is σ = 74661888. Its totient is φ = 4959360.

The previous prime is 22136087. The next prime is 22136117. The reversal of 22136100 is 163122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22136100.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 174237 + ... + 174363.

Almost surely, 2^22136100 is an apocalyptic number.

22136100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22136100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37330944).

22136100 is an abundant number, since it is smaller than the sum of its proper divisors (52525788).

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

22136100 is a wasteful number, since it uses less digits than its factorization.

22136100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 22136100 is about 4704.9016992919. The cubic root of 22136100 is about 280.7805600944.

Adding to 22136100 its reverse (163122), we get a palindrome (22299222).

The spelling of 22136100 in words is "twenty-two million, one hundred thirty-six thousand, one hundred".