100121111021211 has 16 divisors (see below), whose sum is σ = 152565894895104. Its totient is φ = 57211916295744.

The previous prime is 100121111021179. The next prime is 100121111021299. The reversal of 100121111021211 is 112120111121001.

It is not a de Polignac number, because 100121111021211 - 2⁵ = 100121111021179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100121111021111) 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 15 ways as a sum of consecutive naturals, for example, 2511810 + ... + 14371896.

It is an arithmetic number, because the mean of its divisors is an integer number (9535368430944).

Almost surely, 2^{100121111021211} is an apocalyptic number.

100121111021211 is a deficient number, since it is larger than the sum of its proper divisors (52444783873893).

100121111021211 is a wasteful number, since it uses less digits than its factorization.

100121111021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12262090.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 100121111021211 its reverse (112120111121001), we get a palindrome (212241222142212).

The spelling of 100121111021211 in words is "one hundred trillion, one hundred twenty-one billion, one hundred eleven million, twenty-one thousand, two hundred eleven".