2202323220 has 144 divisors (see below), whose sum is σ = 6977093760. Its totient is φ = 561593088.

The previous prime is 2202323219. The next prime is 2202323251. The reversal of 2202323220 is 223232022.

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 = 2202323193 and 2202323202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 556569 + ... + 560511.

It is an arithmetic number, because the mean of its divisors is an integer number (48452040).

Almost surely, 2^2202323220 is an apocalyptic number.

2202323220 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 2202323220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3488546880).

2202323220 is an abundant number, since it is smaller than the sum of its proper divisors (4774770540).

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

2202323220 is a wasteful number, since it uses less digits than its factorization.

2202323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094 (or 4089 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 2202323220 is about 46928.9166719199. The cubic root of 2202323220 is about 1301.0490979251.

Adding to 2202323220 its reverse (223232022), we get a palindrome (2425555242).

The spelling of 2202323220 in words is "two billion, two hundred two million, three hundred twenty-three thousand, two hundred twenty".