100121211211211 has 8 divisors (see below), whose sum is σ = 105393254553600. Its totient is φ = 94849418459880.

The previous prime is 100121211211207. The next prime is 100121211211271. The reversal of 100121211211211 is 112112112121001.

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

It is a cyclic number.

It is not a de Polignac number, because 100121211211211 - 2² = 100121211211207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100121211211211.

It is not an unprimeable number, because it can be changed into a prime (100121211211271) 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, 61827371 + ... + 63426068.

It is an arithmetic number, because the mean of its divisors is an integer number (13174156819200).

Almost surely, 2^{100121211211211} is an apocalyptic number.

100121211211211 is a deficient number, since it is larger than the sum of its proper divisors (5272043342389).

100121211211211 is a wasteful number, since it uses less digits than its factorization.

100121211211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125295529.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 100121211211211 its reverse (112112112121001), we get a palindrome (212233323332212).

The spelling of 100121211211211 in words is "one hundred trillion, one hundred twenty-one billion, two hundred eleven million, two hundred eleven thousand, two hundred eleven".