211111002020112 has 20 divisors (see below), whose sum is σ = 545370088552080. Its totient is φ = 70370334006688.

The previous prime is 211111002020027. The next prime is 211111002020117. The reversal of 211111002020112 is 211020200111112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211111002020091 and 211111002020100.

It is not an unprimeable number, because it can be changed into a prime (211111002020117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2199072937662 + ... + 2199072937757.

It is an arithmetic number, because the mean of its divisors is an integer number (27268504427604).

Almost surely, 2^{211111002020112} is an apocalyptic number.

It is an amenable number.

211111002020112 is an abundant number, since it is smaller than the sum of its proper divisors (334259086531968).

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

211111002020112 is a wasteful number, since it uses less digits than its factorization.

211111002020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398145875430 (or 4398145875424 counting only the distinct ones).

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

Adding to 211111002020112 its reverse (211020200111112), we get a palindrome (422131202131224).

The spelling of 211111002020112 in words is "two hundred eleven trillion, one hundred eleven billion, two million, twenty thousand, one hundred twelve".