2101231021112 has 8 divisors (see below), whose sum is σ = 3939808164600. Its totient is φ = 1050615510552.

The previous prime is 2101231021093. The next prime is 2101231021147. The reversal of 2101231021112 is 2111201321012.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131326938812 + ... + 131326938827.

It is an arithmetic number, because the mean of its divisors is an integer number (492476020575).

Almost surely, 2^{2101231021112} is an apocalyptic number.

It is an amenable number.

2101231021112 is a deficient number, since it is larger than the sum of its proper divisors (1838577143488).

2101231021112 is a wasteful number, since it uses less digits than its factorization.

2101231021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262653877645 (or 262653877641 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2101231021112 its reverse (2111201321012), we get a palindrome (4212432342124).

The spelling of 2101231021112 in words is "two trillion, one hundred one billion, two hundred thirty-one million, twenty-one thousand, one hundred twelve".