2223021320 has 64 divisors (see below), whose sum is σ = 5703430320. Its totient is φ = 772521984.

The previous prime is 2223021313. The next prime is 2223021329. The reversal of 2223021320 is 231203222.

It can be written as a sum of positive squares in 8 ways, for example, as 1287517924 + 935503396 = 35882^2 + 30586^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (2223021329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116897 + ... + 134576.

Almost surely, 2^2223021320 is an apocalyptic number.

2223021320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2223021320 is an abundant number, since it is smaller than the sum of its proper divisors (3480409000).

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

2223021320 is a wasteful number, since it uses less digits than its factorization.

2223021320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251514 (or 251510 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2223021320 is about 47148.9270291488. The cubic root of 2223021320 is about 1305.1122797460.

Adding to 2223021320 its reverse (231203222), we get a palindrome (2454224542).

The spelling of 2223021320 in words is "two billion, two hundred twenty-three million, twenty-one thousand, three hundred twenty".