2228446081 has 2 divisors, whose sum is σ = 2228446082. Its totient is φ = 2228446080.

The previous prime is 2228446079. The next prime is 2228446091. The reversal of 2228446081 is 1806448222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2093886081 + 134560000 = 45759^2 + 11600^2 .

It is a cyclic number.

It is not a de Polignac number, because 2228446081 - 2¹ = 2228446079 is a prime.

It is a super-2 number, since 2×2228446081² = 9931943871848517122, which contains 22 as substring.

Together with 2228446079, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2228446081.

It is not a weakly prime, because it can be changed into another prime (2228446091) 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 as a sum of consecutive naturals, namely, 1114223040 + 1114223041.

It is an arithmetic number, because the mean of its divisors is an integer number (1114223041).

Almost surely, 2^2228446081 is an apocalyptic number.

It is an amenable number.

2228446081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228446081 is an equidigital number, since it uses as much as digits as its factorization.

2228446081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 2228446081 is about 47206.4199129737. The cubic root of 2228446081 is about 1306.1730239630.

The spelling of 2228446081 in words is "two billion, two hundred twenty-eight million, four hundred forty-six thousand, eighty-one".