100021012112111 has 8 divisors (see below), whose sum is σ = 106807754870400. Its totient is φ = 93456785509920.

The previous prime is 100021012112059. The next prime is 100021012112113. The reversal of 100021012112111 is 111211210120001.

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 100021012112111 - 2²² = 100021007917807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021012112113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55629038096 + ... + 55629039893.

It is an arithmetic number, because the mean of its divisors is an integer number (13350969358800).

Almost surely, 2^{100021012112111} is an apocalyptic number.

100021012112111 is a deficient number, since it is larger than the sum of its proper divisors (6786742758289).

100021012112111 is a wasteful number, since it uses less digits than its factorization.

100021012112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111258078049.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 100021012112111 its reverse (111211210120001), we get a palindrome (211232222232112).

The spelling of 100021012112111 in words is "one hundred trillion, twenty-one billion, twelve million, one hundred twelve thousand, one hundred eleven".