212222442300 has 144 divisors (see below), whose sum is σ = 676484452224. Its totient is φ = 50938400000.

The previous prime is 212222442281. The next prime is 212222442301. The reversal of 212222442300 is 3244222212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212222442301) 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, 14935 + ... + 651665.

It is an arithmetic number, because the mean of its divisors is an integer number (4697808696).

Almost surely, 2^212222442300 is an apocalyptic number.

212222442300 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 212222442300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338242226112).

212222442300 is an abundant number, since it is smaller than the sum of its proper divisors (464262009924).

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

212222442300 is a wasteful number, since it uses less digits than its factorization.

212222442300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636860 (or 636853 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 212222442300 its reverse (3244222212), we get a palindrome (215466664512).

It can be divided in two parts, 2122 and 22442300, that added together give a palindrome (22444422).

The spelling of 212222442300 in words is "two hundred twelve billion, two hundred twenty-two million, four hundred forty-two thousand, three hundred".