2231225289 has 18 divisors (see below), whose sum is σ = 3302830986. Its totient is φ = 1450613280.

The previous prime is 2231225273. The next prime is 2231225291. The reversal of 2231225289 is 9825221322.

2231225289 is a `hidden beast` number, since 2 + 2 + 3 + 122 + 528 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1360503225 + 870722064 = 36885^2 + 29508^2 .

It is not a de Polignac number, because 2231225289 - 2⁴ = 2231225273 is a prime.

It is a super-3 number, since 3×2231225289³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231225189) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 906142 + ... + 908600.

Almost surely, 2^2231225289 is an apocalyptic number.

It is an amenable number.

2231225289 is a deficient number, since it is larger than the sum of its proper divisors (1071605697).

2231225289 is an frugal number, since it uses more digits than its factorization.

2231225289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4965 (or 2503 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 2231225289 is about 47235.8474995421. The cubic root of 2231225289 is about 1306.7157965686.

The spelling of 2231225289 in words is "two billion, two hundred thirty-one million, two hundred twenty-five thousand, two hundred eighty-nine".