2120230100221 has 4 divisors (see below), whose sum is σ = 2147068456000. Its totient is φ = 2093391744444.

The previous prime is 2120230100171. The next prime is 2120230100239. The reversal of 2120230100221 is 1220010320212.

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 a de Polignac number, because none of the positive numbers 2^k-2120230100221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120230100195 and 2120230100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120230100281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13419177771 + ... + 13419177928.

It is an arithmetic number, because the mean of its divisors is an integer number (536767114000).

Almost surely, 2^{2120230100221} is an apocalyptic number.

It is an amenable number.

2120230100221 is a deficient number, since it is larger than the sum of its proper divisors (26838355779).

2120230100221 is an equidigital number, since it uses as much as digits as its factorization.

2120230100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26838355778.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2120230100221 its reverse (1220010320212), we get a palindrome (3340240420433).

The spelling of 2120230100221 in words is "two trillion, one hundred twenty billion, two hundred thirty million, one hundred thousand, two hundred twenty-one".