2222123211 has 48 divisors (see below), whose sum is σ = 4012519680. Its totient is φ = 1151242560.

The previous prime is 2222123201. The next prime is 2222123213. The reversal of 2222123211 is 1123212222.

It is not a de Polignac number, because 2222123211 - 2⁵ = 2222123179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2222123213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 265456 + ... + 273698.

It is an arithmetic number, because the mean of its divisors is an integer number (83594160).

Almost surely, 2^2222123211 is an apocalyptic number.

2222123211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2222123211 is a deficient number, since it is larger than the sum of its proper divisors (1790396469).

2222123211 is a wasteful number, since it uses less digits than its factorization.

2222123211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8656 (or 8653 counting only the distinct ones).

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

The square root of 2222123211 is about 47139.4018948056. The cubic root of 2222123211 is about 1304.9364993103.

Adding to 2222123211 its reverse (1123212222), we get a palindrome (3345335433).

The spelling of 2222123211 in words is "two billion, two hundred twenty-two million, one hundred twenty-three thousand, two hundred eleven".