211231100212 has 48 divisors (see below), whose sum is σ = 430509461760. Its totient is φ = 90366207360.

The previous prime is 211231100209. The next prime is 211231100219. The reversal of 211231100212 is 212001132112.

211231100212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1076412 + ... + 1257427.

It is an arithmetic number, because the mean of its divisors is an integer number (8968947120).

Almost surely, 2^211231100212 is an apocalyptic number.

211231100212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211231100212 is an abundant number, since it is smaller than the sum of its proper divisors (219278361548).

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

211231100212 is a wasteful number, since it uses less digits than its factorization.

211231100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333893 (or 2333869 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211231100212 its reverse (212001132112), we get a palindrome (423232232324).

The spelling of 211231100212 in words is "two hundred eleven billion, two hundred thirty-one million, one hundred thousand, two hundred twelve".