1121022312 has 16 divisors (see below), whose sum is σ = 2802555840. Its totient is φ = 373674096.

The previous prime is 1121022281. The next prime is 1121022389. The reversal of 1121022312 is 2132201211.

It is a junction number, because it is equal to n+sod(n) for n = 1121022291 and 1121022300.

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, 23354608 + ... + 23354655.

It is an arithmetic number, because the mean of its divisors is an integer number (175159740).

Almost surely, 2^1121022312 is an apocalyptic number.

1121022312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121022312 is an abundant number, since it is smaller than the sum of its proper divisors (1681533528).

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

1121022312 is a wasteful number, since it uses less digits than its factorization.

1121022312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46709272 (or 46709268 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1121022312 is about 33481.6712844505. The cubic root of 1121022312 is about 1038.8146974377.

Adding to 1121022312 its reverse (2132201211), we get a palindrome (3253223523).

The spelling of 1121022312 in words is "one billion, one hundred twenty-one million, twenty-two thousand, three hundred twelve".