212021012112100 has 36 divisors (see below), whose sum is σ = 465909464608000. Its totient is φ = 83734880729760.

The previous prime is 212021012112083. The next prime is 212021012112109. The reversal of 212021012112100 is 1211210120212.

It is not an unprimeable number, because it can be changed into a prime (212021012112109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13419043500 + ... + 13419059299.

Almost surely, 2^{212021012112100} is an apocalyptic number.

212021012112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212021012112100 is an abundant number, since it is smaller than the sum of its proper divisors (253888452495900).

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

212021012112100 is a wasteful number, since it uses less digits than its factorization.

212021012112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26838102892 (or 26838102885 counting only the distinct ones).

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

Adding to 212021012112100 its reverse (1211210120212), we get a palindrome (213232222232312).

The spelling of 212021012112100 in words is "two hundred twelve trillion, twenty-one billion, twelve million, one hundred twelve thousand, one hundred".