212120201100 has 36 divisors (see below), whose sum is σ = 613734449384. Its totient is φ = 56565386880.

The previous prime is 212120201093. The next prime is 212120201107. The reversal of 212120201100 is 1102021212.

212120201100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212120201093) and next prime (212120201107).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (212120201107) 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 11 ways as a sum of consecutive naturals, for example, 353533369 + ... + 353533968.

Almost surely, 2^212120201100 is an apocalyptic number.

212120201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212120201100 is an abundant number, since it is smaller than the sum of its proper divisors (401614248284).

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

212120201100 is a wasteful number, since it uses less digits than its factorization.

212120201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707067354 (or 707067347 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212120201100 its reverse (1102021212), we get a palindrome (213222222312).

The spelling of 212120201100 in words is "two hundred twelve billion, one hundred twenty million, two hundred one thousand, one hundred".