22225200000 has 192 divisors, whose sum is σ = 73793870640. Its totient is φ = 5926400000.

The previous prime is 22225199993. The next prime is 22225200017. The reversal of 22225200000 is 252222.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1190740 + ... + 1209260.

Almost surely, 2^22225200000 is an apocalyptic number.

22225200000 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 22225200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36896935320).

22225200000 is an abundant number, since it is smaller than the sum of its proper divisors (51568670640).

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

22225200000 is an frugal number, since it uses more digits than its factorization.

22225200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18563 (or 18531 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

Adding to 22225200000 its reverse (252222), we get a palindrome (22225452222).

The spelling of 22225200000 in words is "twenty-two billion, two hundred twenty-five million, two hundred thousand".