2212225400 has 96 divisors (see below), whose sum is σ = 6412625280. Its totient is φ = 689520000.

The previous prime is 2212225373. The next prime is 2212225403. The reversal of 2212225400 is 45222122.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212225403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56426 + ... + 87225.

It is an arithmetic number, because the mean of its divisors is an integer number (66798180).

Almost surely, 2^2212225400 is an apocalyptic number.

2212225400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212225400 is an abundant number, since it is smaller than the sum of its proper divisors (4200399880).

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

2212225400 is a wasteful number, since it uses less digits than its factorization.

2212225400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143685 (or 143676 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2212225400 is about 47034.3002499240. The cubic root of 2212225400 is about 1302.9961269576.

Adding to 2212225400 its reverse (45222122), we get a palindrome (2257447522).

It can be divided in two parts, 221222 and 5400, that added together give a palindrome (226622).

The spelling of 2212225400 in words is "two billion, two hundred twelve million, two hundred twenty-five thousand, four hundred".