1021011212112 has 40 divisors (see below), whose sum is σ = 2722696569600. Its totient is φ = 329358455040.

The previous prime is 1021011212069. The next prime is 1021011212147. The reversal of 1021011212112 is 2112121101201.

It is a happy number.

1021011212112 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1021011212091 and 1021011212100.

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, 343080237 + ... + 343083212.

It is an arithmetic number, because the mean of its divisors is an integer number (68067414240).

Almost surely, 2^{1021011212112} is an apocalyptic number.

1021011212112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021011212112 is an abundant number, since it is smaller than the sum of its proper divisors (1701685357488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021011212112 is a wasteful number, since it uses less digits than its factorization.

1021011212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686163491 (or 686163485 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1021011212112 its reverse (2112121101201), we get a palindrome (3133132313313).

The spelling of 1021011212112 in words is "one trillion, twenty-one billion, eleven million, two hundred twelve thousand, one hundred twelve".