1122111122 has 16 divisors (see below), whose sum is σ = 1862046144. Its totient is φ = 502866000.

The previous prime is 1122111121. The next prime is 1122111169. The reversal of 1122111122 is 2211112211.

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

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1122111097 and 1122111106.

It is not an unprimeable number, because it can be changed into a prime (1122111121) 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, 357629 + ... + 360752.

It is an arithmetic number, because the mean of its divisors is an integer number (116377884).

Almost surely, 2^1122111122 is an apocalyptic number.

1122111122 is a deficient number, since it is larger than the sum of its proper divisors (739935022).

1122111122 is a wasteful number, since it uses less digits than its factorization.

1122111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718465.

The product of its digits is 16, while the sum is 14.

The square root of 1122111122 is about 33497.9271298986. The cubic root of 1122111122 is about 1039.1509101445.

Adding to 1122111122 its reverse (2211112211), we get a palindrome (3333223333).

It can be divided in two parts, 11 and 22111122, that multiplied together give a palindrome (243222342).

The spelling of 1122111122 in words is "one billion, one hundred twenty-two million, one hundred eleven thousand, one hundred twenty-two".