100221210110101 has 4 divisors (see below), whose sum is σ = 100290280552704. Its totient is φ = 100152139667500.

The previous prime is 100221210110093. The next prime is 100221210110171. The reversal of 100221210110101 is 101011012122001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100221210110101 - 2³ = 100221210110093 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 (100221210110171) 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, 34535219125 + ... + 34535222026.

It is an arithmetic number, because the mean of its divisors is an integer number (25072570138176).

Almost surely, 2^{100221210110101} is an apocalyptic number.

It is an amenable number.

100221210110101 is a deficient number, since it is larger than the sum of its proper divisors (69070442603).

100221210110101 is an equidigital number, since it uses as much as digits as its factorization.

100221210110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69070442602.

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

Adding to 100221210110101 its reverse (101011012122001), we get a palindrome (201232222232102).

The spelling of 100221210110101 in words is "one hundred trillion, two hundred twenty-one billion, two hundred ten million, one hundred ten thousand, one hundred one".