1011222112 has 24 divisors (see below), whose sum is σ = 2059495200. Its totient is φ = 488175744.

The previous prime is 1011222031. The next prime is 1011222131. The reversal of 1011222112 is 2112221101.

It is a junction number, because it is equal to n+sod(n) for n = 1011222092 and 1011222101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543912 + ... + 545767.

It is an arithmetic number, because the mean of its divisors is an integer number (85812300).

Almost surely, 2^1011222112 is an apocalyptic number.

It is an amenable number.

1011222112 is an abundant number, since it is smaller than the sum of its proper divisors (1048273088).

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

1011222112 is a wasteful number, since it uses less digits than its factorization.

1011222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089718 (or 1089710 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1011222112 is about 31799.7187408945. The cubic root of 1011222112 is about 1003.7267977249.

Adding to 1011222112 its reverse (2112221101), we get a palindrome (3123443213).

The spelling of 1011222112 in words is "one billion, eleven million, two hundred twenty-two thousand, one hundred twelve".