2203213122 has 80 divisors (see below), whose sum is σ = 5410152000. Its totient is φ = 664601760.

The previous prime is 2203213109. The next prime is 2203213147. The reversal of 2203213122 is 2213123022.

2203213122 is a `hidden beast` number, since 220 + 321 + 3 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2203213095 and 2203213104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 405379 + ... + 410777.

It is an arithmetic number, because the mean of its divisors is an integer number (67626900).

Almost surely, 2^2203213122 is an apocalyptic number.

2203213122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2203213122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2705076000).

2203213122 is an abundant number, since it is smaller than the sum of its proper divisors (3206938878).

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

2203213122 is a wasteful number, since it uses less digits than its factorization.

2203213122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5653 (or 5644 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2203213122 is about 46938.3970966202. The cubic root of 2203213122 is about 1301.2243144528.

Adding to 2203213122 its reverse (2213123022), we get a palindrome (4416336144).

The spelling of 2203213122 in words is "two billion, two hundred three million, two hundred thirteen thousand, one hundred twenty-two".