1100211222 has 64 divisors (see below), whose sum is σ = 2490082560. Its totient is φ = 321014400.

The previous prime is 1100211163. The next prime is 1100211241. The reversal of 1100211222 is 2221120011.

It is a junction number, because it is equal to n+sod(n) for n = 1100211198 and 1100211207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1077072 + ... + 1078092.

It is an arithmetic number, because the mean of its divisors is an integer number (38907540).

Almost surely, 2^1100211222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1100211222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245041280).

1100211222 is an abundant number, since it is smaller than the sum of its proper divisors (1389871338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1100211222 is a wasteful number, since it uses less digits than its factorization.

1100211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1100211222 is about 33169.4320421680. The cubic root of 1100211222 is about 1032.3461840370.

Adding to 1100211222 its reverse (2221120011), we get a palindrome (3321331233).

The spelling of 1100211222 in words is "one billion, one hundred million, two hundred eleven thousand, two hundred twenty-two".