2122220211 has 16 divisors (see below), whose sum is σ = 3077053344. Its totient is φ = 1295599104.

The previous prime is 2122220209. The next prime is 2122220239. The reversal of 2122220211 is 1120222212.

It is not a de Polignac number, because 2122220211 - 2¹ = 2122220209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122220251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560440 + ... + 564213.

It is an arithmetic number, because the mean of its divisors is an integer number (192315834).

Almost surely, 2^2122220211 is an apocalyptic number.

2122220211 is a deficient number, since it is larger than the sum of its proper divisors (954833133).

2122220211 is a wasteful number, since it uses less digits than its factorization.

2122220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124710.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2122220211 is about 46067.5613745725. The cubic root of 2122220211 is about 1285.0799530362.

Adding to 2122220211 its reverse (1120222212), we get a palindrome (3242442423).

The spelling of 2122220211 in words is "two billion, one hundred twenty-two million, two hundred twenty thousand, two hundred eleven".