1021112101112 has 16 divisors (see below), whose sum is σ = 1917517182840. Its totient is φ = 509774185696.

The previous prime is 1021112101111. The next prime is 1021112101117. The reversal of 1021112101112 is 2111012111201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021112101111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97727558 + ... + 97738005.

Almost surely, 2^{1021112101112} is an apocalyptic number.

It is an amenable number.

1021112101112 is a deficient number, since it is larger than the sum of its proper divisors (896405081728).

1021112101112 is a wasteful number, since it uses less digits than its factorization.

1021112101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195466222 (or 195466218 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1021112101112 its reverse (2111012111201), we get a palindrome (3132124212313).

The spelling of 1021112101112 in words is "one trillion, twenty-one billion, one hundred twelve million, one hundred one thousand, one hundred twelve".