100111221020101 has 8 divisors (see below), whose sum is σ = 100190400266144. Its totient is φ = 100032044305680.

The previous prime is 100111221020047. The next prime is 100111221020147. The reversal of 100111221020101 is 101020122111001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100111221020101 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 (100111221020171) 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, 82833511 + ... + 84033403.

It is an arithmetic number, because the mean of its divisors is an integer number (12523800033268).

Almost surely, 2^{100111221020101} is an apocalyptic number.

It is an amenable number.

100111221020101 is a deficient number, since it is larger than the sum of its proper divisors (79179246043).

100111221020101 is a wasteful number, since it uses less digits than its factorization.

100111221020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265811.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100111221020101 its reverse (101020122111001), we get a palindrome (201131343131102).

The spelling of 100111221020101 in words is "one hundred trillion, one hundred eleven billion, two hundred twenty-one million, twenty thousand, one hundred one".