2423020221 has 12 divisors (see below), whose sum is σ = 3594510972. Its totient is φ = 1571688576.

The previous prime is 2423020189. The next prime is 2423020231. The reversal of 2423020221 is 1220203242.

2423020221 is a `hidden beast` number, since 2 + 423 + 0 + 20 + 221 = 666.

2423020221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2329124121 + 93896100 = 48261^2 + 9690^2 .

It is not a de Polignac number, because 2423020221 - 2⁵ = 2423020189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2423020194 and 2423020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2423020231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3637836 + ... + 3638501.

It is an arithmetic number, because the mean of its divisors is an integer number (299542581).

Almost surely, 2^2423020221 is an apocalyptic number.

It is an amenable number.

2423020221 is a deficient number, since it is larger than the sum of its proper divisors (1171490751).

2423020221 is a wasteful number, since it uses less digits than its factorization.

2423020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7276380 (or 7276377 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2423020221 is about 49224.1832943930. The cubic root of 2423020221 is about 1343.1329790795.

Adding to 2423020221 its reverse (1220203242), we get a palindrome (3643223463).

The spelling of 2423020221 in words is "two billion, four hundred twenty-three million, twenty thousand, two hundred twenty-one".