211122122222 has 32 divisors (see below), whose sum is σ = 369213189120. Its totient is φ = 89475498880.

The previous prime is 211122122221. The next prime is 211122122227. The reversal of 211122122222 is 222221221112.

211122122222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211122122222² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 211122122194 and 211122122203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211122122221) 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, 2597822 + ... + 2677857.

It is an arithmetic number, because the mean of its divisors is an integer number (11537912160).

Almost surely, 2^211122122222 is an apocalyptic number.

211122122222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211122122222 is a deficient number, since it is larger than the sum of its proper divisors (158091066898).

211122122222 is a wasteful number, since it uses less digits than its factorization.

211122122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275816.

The product of its digits is 256, while the sum is 20.

Adding to 211122122222 its reverse (222221221112), we get a palindrome (433343343334).

The spelling of 211122122222 in words is "two hundred eleven billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-two".