1012211121112 has 8 divisors (see below), whose sum is σ = 1897895852100. Its totient is φ = 506105560552.

The previous prime is 1012211121083. The next prime is 1012211121161. The reversal of 1012211121112 is 2111211122101.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63263195062 + ... + 63263195077.

Almost surely, 2^{1012211121112} is an apocalyptic number.

It is an amenable number.

1012211121112 is a deficient number, since it is larger than the sum of its proper divisors (885684730988).

1012211121112 is a wasteful number, since it uses less digits than its factorization.

1012211121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126526390145 (or 126526390141 counting only the distinct ones).

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

Adding to 1012211121112 its reverse (2111211122101), we get a palindrome (3123422243213).

The spelling of 1012211121112 in words is "one trillion, twelve billion, two hundred eleven million, one hundred twenty-one thousand, one hundred twelve".