1012221112112 has 40 divisors (see below), whose sum is σ = 2247696260256. Its totient is φ = 432580110336.

The previous prime is 1012221112081. The next prime is 1012221112121. The reversal of 1012221112112 is 2112111222101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12761723 + ... + 12840794.

Almost surely, 2^{1012221112112} is an apocalyptic number.

It is an amenable number.

1012221112112 is an abundant number, since it is smaller than the sum of its proper divisors (1235475148144).

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

1012221112112 is a wasteful number, since it uses less digits than its factorization.

1012221112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25602885 (or 25602879 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1012221112112 its reverse (2112111222101), we get a palindrome (3124332334213).

The spelling of 1012221112112 in words is "one trillion, twelve billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twelve".