2011223222 has 4 divisors (see below), whose sum is σ = 3016834836. Its totient is φ = 1005611610.

The previous prime is 2011223213. The next prime is 2011223237. The reversal of 2011223222 is 2223221102.

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

It is a super-2 number, since 2×2011223222² = 8090037697424122568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2011223222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502805804 + ... + 502805807.

It is an arithmetic number, because the mean of its divisors is an integer number (754208709).

Almost surely, 2^2011223222 is an apocalyptic number.

2011223222 is a deficient number, since it is larger than the sum of its proper divisors (1005611614).

2011223222 is a wasteful number, since it uses less digits than its factorization.

2011223222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005611613.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2011223222 is about 44846.6634433377. The cubic root of 2011223222 is about 1262.2733841792.

Adding to 2011223222 its reverse (2223221102), we get a palindrome (4234444324).

It can be divided in two parts, 20112 and 23222, that added together give a palindrome (43334).

The spelling of 2011223222 in words is "two billion, eleven million, two hundred twenty-three thousand, two hundred twenty-two".