1111211244 has 288 divisors, whose sum is σ = 3536906240. Its totient is φ = 299376000.

The previous prime is 1111211243. The next prime is 1111211249. The reversal of 1111211244 is 4421121111.

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is not an unprimeable number, because it can be changed into a prime (1111211243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5266299 + ... + 5266509.

Almost surely, 2^1111211244 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 1111211244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1768453120).

1111211244 is an abundant number, since it is smaller than the sum of its proper divisors (2425694996).

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

1111211244 is a wasteful number, since it uses less digits than its factorization.

1111211244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 271 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

The square root of 1111211244 is about 33334.8352928284. The cubic root of 1111211244 is about 1035.7752813334.

Adding to 1111211244 its reverse (4421121111), we get a palindrome (5532332355).

The spelling of 1111211244 in words is "one billion, one hundred eleven million, two hundred eleven thousand, two hundred forty-four".