2101021211112 has 32 divisors (see below), whose sum is σ = 5284005451200. Its totient is φ = 696146747264.

The previous prime is 2101021211111. The next prime is 2101021211129. The reversal of 2101021211112 is 2111121201012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2101021211091 and 2101021211100.

It is not an unprimeable number, because it can be changed into a prime (2101021211111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262099437 + ... + 262107452.

It is an arithmetic number, because the mean of its divisors is an integer number (165125170350).

Almost surely, 2^{2101021211112} is an apocalyptic number.

It is an amenable number.

2101021211112 is an abundant number, since it is smaller than the sum of its proper divisors (3182984240088).

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

2101021211112 is a wasteful number, since it uses less digits than its factorization.

2101021211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524207065 (or 524207061 counting only the distinct ones).

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

Adding to 2101021211112 its reverse (2111121201012), we get a palindrome (4212142412124).

The spelling of 2101021211112 in words is "two trillion, one hundred one billion, twenty-one million, two hundred eleven thousand, one hundred twelve".