1100220212 has 96 divisors (see below), whose sum is σ = 2596043520. Its totient is φ = 395458560.

The previous prime is 1100220211. The next prime is 1100220223. The reversal of 1100220212 is 2120220011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1100220193 and 1100220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176387 + ... + 182517.

It is an arithmetic number, because the mean of its divisors is an integer number (27042120).

Almost surely, 2^1100220212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1100220212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1298021760).

1100220212 is an abundant number, since it is smaller than the sum of its proper divisors (1495823308).

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

1100220212 is a wasteful number, since it uses less digits than its factorization.

1100220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6201 (or 6199 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1100220212 is about 33169.5675582302. The cubic root of 1100220212 is about 1032.3489958507.

Adding to 1100220212 its reverse (2120220011), we get a palindrome (3220440223).

The spelling of 1100220212 in words is "one billion, one hundred million, two hundred twenty thousand, two hundred twelve".