2201018 has 4 divisors (see below), whose sum is σ = 3301530. Its totient is φ = 1100508.

The previous prime is 2200997. The next prime is 2201033. The reversal of 2201018 is 8101022.

2201018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1787569 + 413449 = 1337^2 + 643^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2200993 and 2201011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550253 + ... + 550256.

2^2201018 is an apocalyptic number.

2201018 is a deficient number, since it is larger than the sum of its proper divisors (1100512).

2201018 is a wasteful number, since it uses less digits than its factorization.

2201018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100511.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2201018 is about 1483.5828254600. The cubic root of 2201018 is about 130.0792022295.

The spelling of 2201018 in words is "two million, two hundred one thousand, eighteen".