1111111122 has 16 divisors (see below), whose sum is σ = 2424242592. Its totient is φ = 336700320.

The previous prime is 1111111121. The next prime is 1111111139. The reversal of 1111111122 is 2211111111.

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

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1111111098 and 1111111107.

It is not an unprimeable number, because it can be changed into a prime (1111111121) 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, 8417443 + ... + 8417574.

It is an arithmetic number, because the mean of its divisors is an integer number (151515162).

Almost surely, 2^1111111122 is an apocalyptic number.

1111111122 is an abundant number, since it is smaller than the sum of its proper divisors (1313131470).

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

1111111122 is a wasteful number, since it uses less digits than its factorization.

1111111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16835033.

The product of its digits is 4, while the sum is 12.

The square root of 1111111122 is about 33333.3334966667. Note that the first 3 decimals coincide. The cubic root of 1111111122 is about 1035.7441720347.

Adding to 1111111122 its reverse (2211111111), we get a palindrome (3322222233).

It can be divided in two parts, 11111111 and 22, that multiplied together give a palindrome (244444442).

The spelling of 1111111122 in words is "one billion, one hundred eleven million, one hundred eleven thousand, one hundred twenty-two".