100101201111 has 16 divisors (see below), whose sum is σ = 156103238400. Its totient is φ = 63221810904.

The previous prime is 100101201107. The next prime is 100101201119. The reversal of 100101201111 is 111102101001.

It is not a de Polignac number, because 100101201111 - 2² = 100101201107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 100101201093 and 100101201102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100101201119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97564011 + ... + 97565036.

It is an arithmetic number, because the mean of its divisors is an integer number (9756452400).

Almost surely, 2^100101201111 is an apocalyptic number.

100101201111 is a deficient number, since it is larger than the sum of its proper divisors (56002037289).

100101201111 is a wasteful number, since it uses less digits than its factorization.

100101201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195129075 (or 195129069 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 100101201111 its reverse (111102101001), we get a palindrome (211203302112).

It can be divided in two parts, 10010 and 1201111, that added together give a palindrome (1211121).

The spelling of 100101201111 in words is "one hundred billion, one hundred one million, two hundred one thousand, one hundred eleven".