222231300 has 72 divisors (see below), whose sum is σ = 644500416. Its totient is φ = 59122560.

The previous prime is 222231299. The next prime is 222231307. The reversal of 222231300 is 3132222.

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

It is a self number, because there is not a number n which added to its sum of digits gives 222231300.

It is not an unprimeable number, because it can be changed into a prime (222231307) 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, 222402 + ... + 223398.

Almost surely, 2^222231300 is an apocalyptic number.

222231300 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 222231300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322250208).

222231300 is an abundant number, since it is smaller than the sum of its proper divisors (422269116).

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

222231300 is a wasteful number, since it uses less digits than its factorization.

222231300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757 (or 1750 counting only the distinct ones).

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

The square root of 222231300 is about 14907.4243248121. The cubic root of 222231300 is about 605.7151118735.

Adding to 222231300 its reverse (3132222), we get a palindrome (225363522).

It can be divided in two parts, 22 and 2231300, that added together give a palindrome (2231322).

The spelling of 222231300 in words is "two hundred twenty-two million, two hundred thirty-one thousand, three hundred".