100100220101 has 4 divisors (see below), whose sum is σ = 114400251552. Its totient is φ = 85800188652.

The previous prime is 100100220053. The next prime is 100100220137. The reversal of 100100220101 is 101022001001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 101022001001 = 193 ⋅523430057.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100100220101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100100220401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7150015715 + ... + 7150015728.

It is an arithmetic number, because the mean of its divisors is an integer number (28600062888).

Almost surely, 2^100100220101 is an apocalyptic number.

It is an amenable number.

100100220101 is a deficient number, since it is larger than the sum of its proper divisors (14300031451).

100100220101 is an equidigital number, since it uses as much as digits as its factorization.

100100220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14300031450.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100100220101 its reverse (101022001001), we get a palindrome (201122221102).

The spelling of 100100220101 in words is "one hundred billion, one hundred million, two hundred twenty thousand, one hundred one".