1021112103112 has 8 divisors (see below), whose sum is σ = 1914585193350. Its totient is φ = 510556051552.

The previous prime is 1021112103083. The next prime is 1021112103119. The reversal of 1021112103112 is 2113012111201.

It is a happy number.

1021112103112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 980127720196 + 40984382916 = 990014^2 + 202446^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1021112103119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63819506437 + ... + 63819506452.

Almost surely, 2^{1021112103112} is an apocalyptic number.

It is an amenable number.

1021112103112 is a deficient number, since it is larger than the sum of its proper divisors (893473090238).

1021112103112 is a wasteful number, since it uses less digits than its factorization.

1021112103112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127639012895 (or 127639012891 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1021112103112 its reverse (2113012111201), we get a palindrome (3134124214313).

The spelling of 1021112103112 in words is "one trillion, twenty-one billion, one hundred twelve million, one hundred three thousand, one hundred twelve".