100120121211 has 8 divisors (see below), whose sum is σ = 145629267264. Its totient is φ = 60678861320.

The previous prime is 100120121209. The next prime is 100120121219. The reversal of 100120121211 is 112121021001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100120121211 - 2¹ = 100120121209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100120121219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1516971501 + ... + 1516971566.

It is an arithmetic number, because the mean of its divisors is an integer number (18203658408).

Almost surely, 2^100120121211 is an apocalyptic number.

100120121211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100120121211 is a deficient number, since it is larger than the sum of its proper divisors (45509146053).

100120121211 is a wasteful number, since it uses less digits than its factorization.

100120121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033943081.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100120121211 its reverse (112121021001), we get a palindrome (212241142212).

The spelling of 100120121211 in words is "one hundred billion, one hundred twenty million, one hundred twenty-one thousand, two hundred eleven".