2221202320 has 40 divisors (see below), whose sum is σ = 5468080824. Its totient is φ = 836216832.

The previous prime is 2221202293. The next prime is 2221202341. The reversal of 2221202320 is 232021222.

It can be written as a sum of positive squares in 4 ways, for example, as 20466576 + 2200735744 = 4524^2 + 46912^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2221202294 and 2221202303.

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 7 ways as a sum of consecutive naturals, for example, 815259 + ... + 817978.

Almost surely, 2^2221202320 is an apocalyptic number.

2221202320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221202320 is an abundant number, since it is smaller than the sum of its proper divisors (3246878504).

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

2221202320 is a wasteful number, since it uses less digits than its factorization.

2221202320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633267 (or 1633261 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2221202320 is about 47129.6331409444. The cubic root of 2221202320 is about 1304.7562107296.

Adding to 2221202320 its reverse (232021222), we get a palindrome (2453223542).

The spelling of 2221202320 in words is "two billion, two hundred twenty-one million, two hundred two thousand, three hundred twenty".