222321300000 has 144 divisors (see below), whose sum is σ = 729446062464. Its totient is φ = 59285600000.

The previous prime is 222321299999. The next prime is 222321300001. The reversal of 222321300000 is 3123222.

It is an interprime number because it is at equal distance from previous prime (222321299999) and next prime (222321300001).

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

It is not an unprimeable number, because it can be changed into a prime (222321300001) 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, 70536 + ... + 670535.

It is an arithmetic number, because the mean of its divisors is an integer number (5065597656).

Almost surely, 2^222321300000 is an apocalyptic number.

222321300000 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 222321300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364723031232).

222321300000 is an abundant number, since it is smaller than the sum of its proper divisors (507124762464).

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

222321300000 is an frugal number, since it uses more digits than its factorization.

222321300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741109 (or 741081 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 222321300000 its reverse (3123222), we get a palindrome (222324423222).

The spelling of 222321300000 in words is "two hundred twenty-two billion, three hundred twenty-one million, three hundred thousand".