22200213222 has 96 divisors (see below), whose sum is σ = 53857664640. Its totient is φ = 6552120960.

The previous prime is 22200213209. The next prime is 22200213223. The reversal of 22200213222 is 22231200222.

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

It is a junction number, because it is equal to n+sod(n) for n = 22200213195 and 22200213204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200213223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1171273 + ... + 1190075.

It is an arithmetic number, because the mean of its divisors is an integer number (561017340).

Almost surely, 2^22200213222 is an apocalyptic number.

22200213222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22200213222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26928832320).

22200213222 is an abundant number, since it is smaller than the sum of its proper divisors (31657451418).

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

22200213222 is a wasteful number, since it uses less digits than its factorization.

22200213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18978 (or 18975 counting only the distinct ones).

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

Adding to 22200213222 its reverse (22231200222), we get a palindrome (44431413444).

The spelling of 22200213222 in words is "twenty-two billion, two hundred million, two hundred thirteen thousand, two hundred twenty-two".