212120101100 has 36 divisors (see below), whose sum is σ = 462276209304. Its totient is φ = 84483876480.

The previous prime is 212120101069. The next prime is 212120101111. The reversal of 212120101100 is 1101021212.

212120101100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4528634 + ... + 4575233.

It is an arithmetic number, because the mean of its divisors is an integer number (12841005814).

Almost surely, 2^212120101100 is an apocalyptic number.

212120101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212120101100 is an abundant number, since it is smaller than the sum of its proper divisors (250156108204).

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

212120101100 is a wasteful number, since it uses less digits than its factorization.

212120101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9104114 (or 9104107 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 212120101100 its reverse (1101021212), we get a palindrome (213221122312).

The spelling of 212120101100 in words is "two hundred twelve billion, one hundred twenty million, one hundred one thousand, one hundred".