2231223320 has 32 divisors (see below), whose sum is σ = 5069967120. Its totient is φ = 883651200.

The previous prime is 2231223301. The next prime is 2231223329. The reversal of 2231223320 is 233221322.

It is a super-3 number, since 3×2231223320³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2231223292 and 2231223301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231223329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272102 + ... + 280181.

Almost surely, 2^2231223320 is an apocalyptic number.

2231223320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231223320 is an abundant number, since it is smaller than the sum of its proper divisors (2838743800).

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

2231223320 is a wasteful number, since it uses less digits than its factorization.

2231223320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552395 (or 552391 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2231223320 is about 47235.8266573159. The cubic root of 2231223320 is about 1306.7154121873.

Adding to 2231223320 its reverse (233221322), we get a palindrome (2464444642).

The spelling of 2231223320 in words is "two billion, two hundred thirty-one million, two hundred twenty-three thousand, three hundred twenty".