2223212320 has 72 divisors (see below), whose sum is σ = 6109885404. Its totient is φ = 762241536.

The previous prime is 2223212317. The next prime is 2223212323. The reversal of 2223212320 is 232123222.

It is an interprime number because it is at equal distance from previous prime (2223212317) and next prime (2223212323).

It can be written as a sum of positive squares in 2 ways, for example, as 2065157136 + 158055184 = 45444^2 + 12572^2 .

It is not an unprimeable number, because it can be changed into a prime (2223212323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133947 + ... + 149626.

Almost surely, 2^2223212320 is an apocalyptic number.

2223212320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2223212320 is an abundant number, since it is smaller than the sum of its proper divisors (3886673084).

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

2223212320 is a wasteful number, since it uses less digits than its factorization.

2223212320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283602 (or 283587 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2223212320 is about 47150.9524824261. The cubic root of 2223212320 is about 1305.1496567014.

Adding to 2223212320 its reverse (232123222), we get a palindrome (2455335542).

It can be divided in two parts, 2 and 223212320, that added together give a palindrome (223212322).

The spelling of 2223212320 in words is "two billion, two hundred twenty-three million, two hundred twelve thousand, three hundred twenty".