1020112222112 has 12 divisors (see below), whose sum is σ = 2008345937346. Its totient is φ = 510056111040.

The previous prime is 1020112222093. The next prime is 1020112222127. The reversal of 1020112222112 is 2112222110201.

It can be written as a sum of positive squares in only one way, i.e., 704182792336 + 315929429776 = 839156^2 + 562076^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15939253439 + ... + 15939253502.

Almost surely, 2^{1020112222112} is an apocalyptic number.

It is an amenable number.

1020112222112 is a deficient number, since it is larger than the sum of its proper divisors (988233715234).

1020112222112 is an equidigital number, since it uses as much as digits as its factorization.

1020112222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31878506951 (or 31878506943 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1020112222112 its reverse (2112222110201), we get a palindrome (3132334332313).

The spelling of 1020112222112 in words is "one trillion, twenty billion, one hundred twelve million, two hundred twenty-two thousand, one hundred twelve".