2112212211 has 16 divisors (see below), whose sum is σ = 2895664128. Its totient is φ = 1368705600.

The previous prime is 2112212173. The next prime is 2112212231. The reversal of 2112212211 is 1122122112.

It is not a de Polignac number, because 2112212211 - 2¹⁸ = 2111950067 is a prime.

It is a super-2 number, since 2×2112212211² = 8922880848595017042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112212231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1650 + ... + 65016.

It is an arithmetic number, because the mean of its divisors is an integer number (180979008).

Almost surely, 2^2112212211 is an apocalyptic number.

2112212211 is a deficient number, since it is larger than the sum of its proper divisors (783451917).

2112212211 is a wasteful number, since it uses less digits than its factorization.

2112212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63682.

The product of its digits is 32, while the sum is 15.

The square root of 2112212211 is about 45958.8099389007. The cubic root of 2112212211 is about 1283.0567024069.

Adding to 2112212211 its reverse (1122122112), we get a palindrome (3234334323).

Subtracting from 2112212211 its reverse (1122122112), we obtain a palindrome (990090099).

It can be divided in two parts, 21122 and 12211, that added together give a palindrome (33333).

The spelling of 2112212211 in words is "two billion, one hundred twelve million, two hundred twelve thousand, two hundred eleven".