211201016016 has 80 divisors (see below), whose sum is σ = 560970724544. Its totient is φ = 68421583872.

The previous prime is 211201015981. The next prime is 211201016017. The reversal of 211201016016 is 610610102112.

It is a junction number, because it is equal to n+sod(n) for n = 211201015983 and 211201016001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211201016017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1545276 + ... + 1676388.

Almost surely, 2^211201016016 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 211201016016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280485362272).

211201016016 is an abundant number, since it is smaller than the sum of its proper divisors (349769708528).

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

211201016016 is a wasteful number, since it uses less digits than its factorization.

211201016016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132068 (or 132062 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 211201016016 its reverse (610610102112), we get a palindrome (821811118128).

The spelling of 211201016016 in words is "two hundred eleven billion, two hundred one million, sixteen thousand, sixteen".