211020102112 has 24 divisors (see below), whose sum is σ = 415459535400. Its totient is φ = 105506569344.

The previous prime is 211020102079. The next prime is 211020102113. The reversal of 211020102112 is 211201020112.

It is a junction number, because it is equal to n+sod(n) for n = 211020102092 and 211020102101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211020102113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073839 + ... + 1255057.

It is an arithmetic number, because the mean of its divisors is an integer number (17310813975).

Almost surely, 2^211020102112 is an apocalyptic number.

It is an amenable number.

211020102112 is a deficient number, since it is larger than the sum of its proper divisors (204439433288).

211020102112 is a wasteful number, since it uses less digits than its factorization.

211020102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217618 (or 217610 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211020102112 its reverse (211201020112), we get a palindrome (422221122224).

The spelling of 211020102112 in words is "two hundred eleven billion, twenty million, one hundred two thousand, one hundred twelve".