100101210121111 has 4 divisors (see below), whose sum is σ = 100197553924000. Its totient is φ = 100004866318224.

The previous prime is 100101210121039. The next prime is 100101210121127. The reversal of 100101210121111 is 111121012101001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 100101210121111 - 2⁹ = 100101210120599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100101210121091 and 100101210121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100101210121141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48171899886 + ... + 48171901963.

It is an arithmetic number, because the mean of its divisors is an integer number (25049388481000).

Almost surely, 2^{100101210121111} is an apocalyptic number.

100101210121111 is a deficient number, since it is larger than the sum of its proper divisors (96343802889).

100101210121111 is an equidigital number, since it uses as much as digits as its factorization.

100101210121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96343802888.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 100101210121111 its reverse (111121012101001), we get a palindrome (211222222222112).

The spelling of 100101210121111 in words is "one hundred trillion, one hundred one billion, two hundred ten million, one hundred twenty-one thousand, one hundred eleven".