212120210211100 has 72 divisors (see below), whose sum is σ = 465917202828000. Its totient is φ = 83816640096000.

The previous prime is 212120210211047. The next prime is 212120210211131. The reversal of 212120210211100 is 1112012021212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19486375 + ... + 28354174.

It is an arithmetic number, because the mean of its divisors is an integer number (6471072261500).

Almost surely, 2^{212120210211100} is an apocalyptic number.

212120210211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212120210211100 is an abundant number, since it is smaller than the sum of its proper divisors (253796992616900).

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

212120210211100 is a wasteful number, since it uses less digits than its factorization.

212120210211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47841103 (or 47841096 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212120210211100 its reverse (1112012021212), we get a palindrome (213232222232312).

The spelling of 212120210211100 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred ten million, two hundred eleven thousand, one hundred".