100121111202111 has 16 divisors (see below), whose sum is σ = 133721575125600. Its totient is φ = 66634116691968.

The previous prime is 100121111202083. The next prime is 100121111202173. The reversal of 100121111202111 is 111202111121001.

It is not a de Polignac number, because 100121111202111 - 2⁷ = 100121111201983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121111202191) 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, 6679276 + ... + 15647841.

It is an arithmetic number, because the mean of its divisors is an integer number (8357598445350).

Almost surely, 2^{100121111202111} is an apocalyptic number.

100121111202111 is a deficient number, since it is larger than the sum of its proper divisors (33600463923489).

100121111202111 is a wasteful number, since it uses less digits than its factorization.

100121111202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22329658.

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

Adding to 100121111202111 its reverse (111202111121001), we get a palindrome (211323222323112).

The spelling of 100121111202111 in words is "one hundred trillion, one hundred twenty-one billion, one hundred eleven million, two hundred two thousand, one hundred eleven".