2221223211 has 12 divisors (see below), whose sum is σ = 3208842000. Its totient is φ = 1480626960.

The previous prime is 2221223203. The next prime is 2221223233. The reversal of 2221223211 is 1123221222.

2221223211 is a `hidden beast` number, since 222 + 122 + 321 + 1 = 666.

It is not a de Polignac number, because 2221223211 - 2³ = 2221223203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221223261) 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, 133165 + ... + 148913.

It is an arithmetic number, because the mean of its divisors is an integer number (267403500).

Almost surely, 2^2221223211 is an apocalyptic number.

2221223211 is a deficient number, since it is larger than the sum of its proper divisors (987618789).

2221223211 is a wasteful number, since it uses less digits than its factorization.

2221223211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31426 (or 31423 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 2221223211 is about 47129.8547738055. The cubic root of 2221223211 is about 1304.7603012435.

Adding to 2221223211 its reverse (1123221222), we get a palindrome (3344444433).

The spelling of 2221223211 in words is "two billion, two hundred twenty-one million, two hundred twenty-three thousand, two hundred eleven".