2218515001 has 2 divisors, whose sum is σ = 2218515002. Its totient is φ = 2218515000.

The previous prime is 2218514981. The next prime is 2218515053. The reversal of 2218515001 is 1005158122.

2218515001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2162250000 + 56265001 = 46500^2 + 7501^2 .

It is a cyclic number.

It is not a de Polignac number, because 2218515001 - 2¹¹ = 2218512953 is a prime.

It is not a weakly prime, because it can be changed into another prime (2218915001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109257500 + 1109257501.

It is an arithmetic number, because the mean of its divisors is an integer number (1109257501).

Almost surely, 2^2218515001 is an apocalyptic number.

It is an amenable number.

2218515001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2218515001 is an equidigital number, since it uses as much as digits as its factorization.

2218515001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 2218515001 is about 47101.1146471079. The cubic root of 2218515001 is about 1304.2298124656.

The spelling of 2218515001 in words is "two billion, two hundred eighteen million, five hundred fifteen thousand, one".