212102020020100 has 36 divisors (see below), whose sum is σ = 526013009651584. Its totient is φ = 72720692578080.

The previous prime is 212102020020097. The next prime is 212102020020109. The reversal of 212102020020100 is 1020020201212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212102020020109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151501442172 + ... + 151501443571.

Almost surely, 2^{212102020020100} is an apocalyptic number.

212102020020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212102020020100 is an abundant number, since it is smaller than the sum of its proper divisors (313910989631484).

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

212102020020100 is a wasteful number, since it uses less digits than its factorization.

212102020020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303002885764 (or 303002885757 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212102020020100 its reverse (1020020201212), we get a palindrome (213122040221312).

The spelling of 212102020020100 in words is "two hundred twelve trillion, one hundred two billion, twenty million, twenty thousand, one hundred".