100011212101 has 4 divisors (see below), whose sum is σ = 100034966304. Its totient is φ = 99987457900.

The previous prime is 100011212083. The next prime is 100011212141. The reversal of 100011212101 is 101212110001.

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 100011212101 - 2⁹ = 100011211589 is a prime.

It is a super-2 number, since 2×100011212101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100011212141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11870785 + ... + 11879206.

It is an arithmetic number, because the mean of its divisors is an integer number (25008741576).

Almost surely, 2^100011212101 is an apocalyptic number.

It is an amenable number.

100011212101 is a deficient number, since it is larger than the sum of its proper divisors (23754203).

100011212101 is an equidigital number, since it uses as much as digits as its factorization.

100011212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23754202.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 100011212101 its reverse (101212110001), we get a palindrome (201223322102).

The spelling of 100011212101 in words is "one hundred billion, eleven million, two hundred twelve thousand, one hundred one".