211231100214 has 64 divisors (see below), whose sum is σ = 481087676160. Its totient is φ = 68659272000.

The previous prime is 211231100209. The next prime is 211231100219. The reversal of 211231100214 is 412001132112.

211231100214 is a `hidden beast` number, since 211 + 231 + 10 + 0 + 214 = 666.

It is an interprime number because it is at equal distance from previous prime (211231100209) and next prime (211231100219).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211231100219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4695649 + ... + 4740419.

It is an arithmetic number, because the mean of its divisors is an integer number (7516994940).

Almost surely, 2^211231100214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211231100214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240543838080).

211231100214 is an abundant number, since it is smaller than the sum of its proper divisors (269856575946).

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

211231100214 is a wasteful number, since it uses less digits than its factorization.

211231100214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46954 (or 46948 counting only the distinct ones).

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

Adding to 211231100214 its reverse (412001132112), we get a palindrome (623232232326).

The spelling of 211231100214 in words is "two hundred eleven billion, two hundred thirty-one million, one hundred thousand, two hundred fourteen".