2201818201 has 4 divisors (see below), whose sum is σ = 2401983504. Its totient is φ = 2001652900.

The previous prime is 2201818169. The next prime is 2201818247. The reversal of 2201818201 is 1028181022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2201818201 - 2⁵ = 2201818169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201815201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100082635 + ... + 100082656.

It is an arithmetic number, because the mean of its divisors is an integer number (600495876).

Almost surely, 2^2201818201 is an apocalyptic number.

It is an amenable number.

2201818201 is a deficient number, since it is larger than the sum of its proper divisors (200165303).

2201818201 is a wasteful number, since it uses less digits than its factorization.

2201818201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200165302.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 2201818201 is about 46923.5356830663. The cubic root of 2201818201 is about 1300.9496416270.

Adding to 2201818201 its reverse (1028181022), we get a palindrome (3229999223).

The spelling of 2201818201 in words is "two billion, two hundred one million, eight hundred eighteen thousand, two hundred one".