2211122122 has 16 divisors (see below), whose sum is σ = 3631086144. Its totient is φ = 1001476000.

The previous prime is 2211122113. The next prime is 2211122129. The reversal of 2211122122 is 2212211122.

It is a happy number.

It is a super-2 number, since 2×2211122122² = 9778122076795565768, which 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 = 2211122096 and 2211122105.

It is not an unprimeable number, because it can be changed into a prime (2211122129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172654 + ... + 185017.

It is an arithmetic number, because the mean of its divisors is an integer number (226942884).

Almost surely, 2^2211122122 is an apocalyptic number.

2211122122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2211122122 is a deficient number, since it is larger than the sum of its proper divisors (1419964022).

2211122122 is a wasteful number, since it uses less digits than its factorization.

2211122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357965.

The product of its digits is 64, while the sum is 16.

The square root of 2211122122 is about 47022.5703465899. The cubic root of 2211122122 is about 1302.7794814615.

Adding to 2211122122 its reverse (2212211122), we get a palindrome (4423333244).

The spelling of 2211122122 in words is "two billion, two hundred eleven million, one hundred twenty-two thousand, one hundred twenty-two".