2228332081 has 8 divisors (see below), whose sum is σ = 2268569160. Its totient is φ = 2188357632.

The previous prime is 2228332039. The next prime is 2228332129. The reversal of 2228332081 is 1802338222.

It can be written as a sum of positive squares in 4 ways, for example, as 400000000 + 1828332081 = 20000^2 + 42759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2228332081 is a prime.

It is a super-2 number, since 2×2228332081² = 9930927726427581122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2228332481) by changing a digit.

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, 48496 + ... + 82513.

It is an arithmetic number, because the mean of its divisors is an integer number (283571145).

Almost surely, 2^2228332081 is an apocalyptic number.

It is an amenable number.

2228332081 is a deficient number, since it is larger than the sum of its proper divisors (40237079).

2228332081 is a wasteful number, since it uses less digits than its factorization.

2228332081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131315.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 2228332081 is about 47205.2124346454. The cubic root of 2228332081 is about 1306.1507504058.

The spelling of 2228332081 in words is "two billion, two hundred twenty-eight million, three hundred thirty-two thousand, eighty-one".