2120100221101 has 4 divisors (see below), whose sum is σ = 2120560816672. Its totient is φ = 2119639625532.

The previous prime is 2120100221093. The next prime is 2120100221119. The reversal of 2120100221101 is 1011220010212.

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 2120100221101 - 2³ = 2120100221093 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 (2120100221501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230290881 + ... + 230300086.

It is an arithmetic number, because the mean of its divisors is an integer number (530140204168).

Almost surely, 2^{2120100221101} is an apocalyptic number.

It is an amenable number.

2120100221101 is a deficient number, since it is larger than the sum of its proper divisors (460595571).

2120100221101 is an equidigital number, since it uses as much as digits as its factorization.

2120100221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460595570.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2120100221101 its reverse (1011220010212), we get a palindrome (3131320231313).

The spelling of 2120100221101 in words is "two trillion, one hundred twenty billion, one hundred million, two hundred twenty-one thousand, one hundred one".