1122212116 has 12 divisors (see below), whose sum is σ = 1981889140. Its totient is φ = 555958080.

The previous prime is 1122212093. The next prime is 1122212123. The reversal of 1122212116 is 6112122211.

It can be written as a sum of positive squares in 2 ways, for example, as 738208900 + 384003216 = 27170^2 + 19596^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1122212093 and 1122212102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286505 + ... + 1287376.

Almost surely, 2^1122212116 is an apocalyptic number.

It is an amenable number.

1122212116 is a deficient number, since it is larger than the sum of its proper divisors (859677024).

1122212116 is a wasteful number, since it uses less digits than its factorization.

1122212116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573994 (or 2573992 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

The square root of 1122212116 is about 33499.4345623922. The cubic root of 1122212116 is about 1039.1820849710.

Adding to 1122212116 its reverse (6112122211), we get a palindrome (7234334327).

The spelling of 1122212116 in words is "one billion, one hundred twenty-two million, two hundred twelve thousand, one hundred sixteen".