22112300 has 72 divisors (see below), whose sum is σ = 56663040. Its totient is φ = 7329600.

The previous prime is 22112287. The next prime is 22112309. The reversal of 22112300 is 321122.

It is a happy number.

It is a super-2 number, since 2×22112300² = 977907622580000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22112309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21191 + ... + 22209.

Almost surely, 2^22112300 is an apocalyptic number.

22112300 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 22112300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28331520).

22112300 is an abundant number, since it is smaller than the sum of its proper divisors (34550740).

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

22112300 is a wasteful number, since it uses less digits than its factorization.

22112300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 22112300 is about 4702.3717420042. The cubic root of 22112300 is about 280.6798953624.

Adding to 22112300 its reverse (321122), we get a palindrome (22433422).

It can be divided in two parts, 221 and 12300, that added together give a palindrome (12521).

The spelling of 22112300 in words is "twenty-two million, one hundred twelve thousand, three hundred".