211203122112 has 140 divisors (see below), whose sum is σ = 630062367000. Its totient is φ = 69952356864.

The previous prime is 211203122077. The next prime is 211203122153. The reversal of 211203122112 is 211221302112.

211203122112 is a `hidden beast` number, since 21 + 120 + 312 + 211 + 2 = 666.

211203122112 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 (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 684139 + ... + 943637.

Almost surely, 2^211203122112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211203122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315031183500).

211203122112 is an abundant number, since it is smaller than the sum of its proper divisors (418859244888).

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

211203122112 is a wasteful number, since it uses less digits than its factorization.

211203122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259680 (or 259661 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 211203122112 its reverse (211221302112), we get a palindrome (422424424224).

The spelling of 211203122112 in words is "two hundred eleven billion, two hundred three million, one hundred twenty-two thousand, one hundred twelve".