1111211122 has 12 divisors (see below), whose sum is σ = 1938950190. Its totient is φ = 476233296.

The previous prime is 1111211119. The next prime is 1111211161. The reversal of 1111211122 is 2211121111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 744143841 + 367067281 = 27279^2 + 19159^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5669347 + ... + 5669542.

Almost surely, 2^1111211122 is an apocalyptic number.

1111211122 is a deficient number, since it is larger than the sum of its proper divisors (827739068).

1111211122 is a wasteful number, since it uses less digits than its factorization.

1111211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11338905 (or 11338898 counting only the distinct ones).

The product of its digits is 8, while the sum is 13.

The square root of 1111211122 is about 33334.8334629108. The cubic root of 1111211122 is about 1035.7752434275.

Adding to 1111211122 its reverse (2211121111), we get a palindrome (3322332233).

The spelling of 1111211122 in words is "one billion, one hundred eleven million, two hundred eleven thousand, one hundred twenty-two".