211332512216 has 64 divisors (see below), whose sum is σ = 480853039680. Its totient is φ = 85001748480.

The previous prime is 211332512207. The next prime is 211332512243. The reversal of 211332512216 is 612215233112.

211332512216 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211332512216² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21626 + ... + 650486.

It is an arithmetic number, because the mean of its divisors is an integer number (7513328745).

Almost surely, 2^211332512216 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 211332512216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240426519840).

211332512216 is an abundant number, since it is smaller than the sum of its proper divisors (269520527464).

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

211332512216 is a wasteful number, since it uses less digits than its factorization.

211332512216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629244 (or 629240 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

Adding to 211332512216 its reverse (612215233112), we get a palindrome (823547745328).

The spelling of 211332512216 in words is "two hundred eleven billion, three hundred thirty-two million, five hundred twelve thousand, two hundred sixteen".