2220211201 has 4 divisors (see below), whose sum is σ = 2390996692. Its totient is φ = 2049425712.

The previous prime is 2220211171. The next prime is 2220211211. The reversal of 2220211201 is 1021120222.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 113401201 + 2106810000 = 10649^2 + 45900^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220211201 - 2⁹ = 2220210689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 170785477 = 2220211201 / (2 + 2 + 2 + 0 + 2 + 1 + 1 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220211211) 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, 85392726 + ... + 85392751.

It is an arithmetic number, because the mean of its divisors is an integer number (597749173).

Almost surely, 2^2220211201 is an apocalyptic number.

It is an amenable number.

2220211201 is a deficient number, since it is larger than the sum of its proper divisors (170785491).

2220211201 is a wasteful number, since it uses less digits than its factorization.

2220211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170785490.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2220211201 is about 47119.1171500486. The cubic root of 2220211201 is about 1304.5621174905.

Adding to 2220211201 its reverse (1021120222), we get a palindrome (3241331423).

The spelling of 2220211201 in words is "two billion, two hundred twenty million, two hundred eleven thousand, two hundred one".