212110100121100 has 36 divisors (see below), whose sum is σ = 460298034680904. Its totient is φ = 84840516100480.

The previous prime is 212110100121091. The next prime is 212110100121107. The reversal of 212110100121100 is 1121001011212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212110100121107) 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, 41629009 + ... + 46445608.

It is an arithmetic number, because the mean of its divisors is an integer number (12786056518914).

Almost surely, 2^{212110100121100} is an apocalyptic number.

212110100121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212110100121100 is an abundant number, since it is smaller than the sum of its proper divisors (248187934559804).

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

212110100121100 is a wasteful number, since it uses less digits than its factorization.

212110100121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88098714 (or 88098707 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 212110100121100 its reverse (1121001011212), we get a palindrome (213231101132312).

The spelling of 212110100121100 in words is "two hundred twelve trillion, one hundred ten billion, one hundred million, one hundred twenty-one thousand, one hundred".