2320020221 has 4 divisors (see below), whose sum is σ = 2326904892. Its totient is φ = 2313135552.

The previous prime is 2320020217. The next prime is 2320020229. The reversal of 2320020221 is 1220200232.

2320020221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 557196025 + 1762824196 = 23605^2 + 41986^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320020221 - 2² = 2320020217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2320020196 and 2320020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320020229) 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, 3441830 + ... + 3442503.

It is an arithmetic number, because the mean of its divisors is an integer number (581726223).

Almost surely, 2^2320020221 is an apocalyptic number.

It is an amenable number.

2320020221 is a deficient number, since it is larger than the sum of its proper divisors (6884671).

2320020221 is an equidigital number, since it uses as much as digits as its factorization.

2320020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6884670.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2320020221 is about 48166.5882225428. The cubic root of 2320020221 is about 1323.8250357131.

Adding to 2320020221 its reverse (1220200232), we get a palindrome (3540220453).

The spelling of 2320020221 in words is "two billion, three hundred twenty million, twenty thousand, two hundred twenty-one".