22223212200 has 144 divisors (see below), whose sum is σ = 85294853280. Its totient is φ = 5079588480.

The previous prime is 22223212199. The next prime is 22223212201. The reversal of 22223212200 is 221232222.

22223212200 is a `hidden beast` number, since 222 + 232 + 12 + 200 = 666.

It is an interprime number because it is at equal distance from previous prime (22223212199) and next prime (22223212201).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22223212201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 869274 + ... + 894473.

It is an arithmetic number, because the mean of its divisors is an integer number (592325370).

Almost surely, 2^22223212200 is an apocalyptic number.

22223212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22223212200 is an abundant number, since it is smaller than the sum of its proper divisors (63071641080).

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

22223212200 is a wasteful number, since it uses less digits than its factorization.

22223212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763776 (or 1763764 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22223212200 its reverse (221232222), we get a palindrome (22444444422).

It can be divided in two parts, 222232 and 12200, that added together give a palindrome (234432).

The spelling of 22223212200 in words is "twenty-two billion, two hundred twenty-three million, two hundred twelve thousand, two hundred".