2221022211 has 12 divisors (see below), whose sum is σ = 2969151432. Its totient is φ = 1476797344.

The previous prime is 2221022201. The next prime is 2221022227. The reversal of 2221022211 is 1122201222.

It is not a de Polignac number, because 2221022211 - 2⁵ = 2221022179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221022201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 524575 + ... + 528791.

It is an arithmetic number, because the mean of its divisors is an integer number (247429286).

Almost surely, 2^2221022211 is an apocalyptic number.

2221022211 is a deficient number, since it is larger than the sum of its proper divisors (748129221).

2221022211 is an frugal number, since it uses more digits than its factorization.

2221022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058 (or 4639 counting only the distinct ones).

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

The square root of 2221022211 is about 47127.7223192465. The cubic root of 2221022211 is about 1304.7209438404.

Adding to 2221022211 its reverse (1122201222), we get a palindrome (3343223433).

The spelling of 2221022211 in words is "two billion, two hundred twenty-one million, twenty-two thousand, two hundred eleven".