1012222112 has 72 divisors (see below), whose sum is σ = 2305900800. Its totient is φ = 435853440.

The previous prime is 1012222087. The next prime is 1012222117. The reversal of 1012222112 is 2112222101.

It is not an unprimeable number, because it can be changed into a prime (1012222117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66689 + ... + 80447.

It is an arithmetic number, because the mean of its divisors is an integer number (32026400).

Almost surely, 2^1012222112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012222112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152950400).

1012222112 is an abundant number, since it is smaller than the sum of its proper divisors (1293678688).

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

1012222112 is a wasteful number, since it uses less digits than its factorization.

1012222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13810 (or 13791 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1012222112 is about 31815.4382650939. The cubic root of 1012222112 is about 1004.0575513430.

Adding to 1012222112 its reverse (2112222101), we get a palindrome (3124444213).

The spelling of 1012222112 in words is "one billion, twelve million, two hundred twenty-two thousand, one hundred twelve".