2220001211 has 8 divisors (see below), whose sum is σ = 2393840400. Its totient is φ = 2051861760.

The previous prime is 2220001187. The next prime is 2220001261. The reversal of 2220001211 is 1121000222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2220001211 - 2¹⁰ = 2220000187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220001192 and 2220001201.

It is not an unprimeable number, because it can be changed into a prime (2220001261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1424126 + ... + 1425683.

It is an arithmetic number, because the mean of its divisors is an integer number (299230050).

Almost surely, 2^2220001211 is an apocalyptic number.

2220001211 is a deficient number, since it is larger than the sum of its proper divisors (173839189).

2220001211 is a wasteful number, since it uses less digits than its factorization.

2220001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849869.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2220001211 is about 47116.8888085790. Note that the first 4 decimals coincide. The cubic root of 2220001211 is about 1304.5209872238.

Adding to 2220001211 its reverse (1121000222), we get a palindrome (3341001433).

The spelling of 2220001211 in words is "two billion, two hundred twenty million, one thousand, two hundred eleven".