1021212120112 has 20 divisors (see below), whose sum is σ = 1986297317496. Its totient is φ = 508619264000.

The previous prime is 1021212120109. The next prime is 1021212120143. The reversal of 1021212120112 is 2110212121201.

1021212120112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124170514 + ... + 124178737.

Almost surely, 2^{1021212120112} is an apocalyptic number.

It is an amenable number.

1021212120112 is a deficient number, since it is larger than the sum of its proper divisors (965085197384).

1021212120112 is a wasteful number, since it uses less digits than its factorization.

1021212120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248349516 (or 248349510 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1021212120112 its reverse (2110212121201), we get a palindrome (3131424241313).

The spelling of 1021212120112 in words is "one trillion, twenty-one billion, two hundred twelve million, one hundred twenty thousand, one hundred twelve".