100212201110121 has 4 divisors (see below), whose sum is σ = 133616268146832. Its totient is φ = 66808134073412.

The previous prime is 100212201110101. The next prime is 100212201110129. The reversal of 100212201110121 is 121011102212001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100212201110121 - 2¹¹ = 100212201108073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100212201110121.

It is not an unprimeable number, because it can be changed into a prime (100212201110129) 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 3 ways as a sum of consecutive naturals, for example, 16702033518351 + ... + 16702033518356.

It is an arithmetic number, because the mean of its divisors is an integer number (33404067036708).

Almost surely, 2^{100212201110121} is an apocalyptic number.

It is an amenable number.

100212201110121 is a deficient number, since it is larger than the sum of its proper divisors (33404067036711).

100212201110121 is an equidigital number, since it uses as much as digits as its factorization.

100212201110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33404067036710.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 100212201110121 its reverse (121011102212001), we get a palindrome (221223303322122).

The spelling of 100212201110121 in words is "one hundred trillion, two hundred twelve billion, two hundred one million, one hundred ten thousand, one hundred twenty-one".