1021111020112 has 40 divisors (see below), whose sum is σ = 2026773403200. Its totient is φ = 498074161920.

The previous prime is 1021111020029. The next prime is 1021111020179. The reversal of 1021111020112 is 2110201111201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1021111020092 and 1021111020101.

It is a congruent number.

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, 15316483 + ... + 15383005.

It is an arithmetic number, because the mean of its divisors is an integer number (50669335080).

Almost surely, 2^{1021111020112} is an apocalyptic number.

It is an amenable number.

1021111020112 is a deficient number, since it is larger than the sum of its proper divisors (1005662383088).

1021111020112 is a wasteful number, since it uses less digits than its factorization.

1021111020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89971 (or 89965 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1021111020112 its reverse (2110201111201), we get a palindrome (3131312131313).

The spelling of 1021111020112 in words is "one trillion, twenty-one billion, one hundred eleven million, twenty thousand, one hundred twelve".