100100121212211 has 4 divisors (see below), whose sum is σ = 133466828282952. Its totient is φ = 66733414141472.

The previous prime is 100100121212183. The next prime is 100100121212239. The reversal of 100100121212211 is 112212121001001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (100100121212183) and next prime (100100121212239).

It is a cyclic number.

It is not a de Polignac number, because 100100121212211 - 2¹⁹ = 100100120687923 is a prime.

It is a super-3 number, since 3×100100121212211³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (100100121212261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16683353535366 + ... + 16683353535371.

It is an arithmetic number, because the mean of its divisors is an integer number (33366707070738).

Almost surely, 2^{100100121212211} is an apocalyptic number.

100100121212211 is a deficient number, since it is larger than the sum of its proper divisors (33366707070741).

100100121212211 is an equidigital number, since it uses as much as digits as its factorization.

100100121212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33366707070740.

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

Adding to 100100121212211 its reverse (112212121001001), we get a palindrome (212312242213212).

The spelling of 100100121212211 in words is "one hundred trillion, one hundred billion, one hundred twenty-one million, two hundred twelve thousand, two hundred eleven".