211120202211712 has 64 divisors (see below), whose sum is σ = 426416912776800. Its totient is φ = 104098354827264.

The previous prime is 211120202211701. The next prime is 211120202211713. The reversal of 211120202211712 is 217112202021112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120202211713) 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, 60313989 + ... + 63718267.

Almost surely, 2^{211120202211712} 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 211120202211712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213208456388400).

211120202211712 is an abundant number, since it is smaller than the sum of its proper divisors (215296710565088).

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

211120202211712 is an equidigital number, since it uses as much as digits as its factorization.

211120202211712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411003 (or 3410991 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 211120202211712 its reverse (217112202021112), we get a palindrome (428232404232824).

The spelling of 211120202211712 in words is "two hundred eleven trillion, one hundred twenty billion, two hundred two million, two hundred eleven thousand, seven hundred twelve".