6541220222 has 8 divisors (see below), whose sum is σ = 10150169400. Its totient is φ = 3157830424.

The previous prime is 6541220209. The next prime is 6541220227. The reversal of 6541220222 is 2220221456.

6541220222 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6541220191 and 6541220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6541220227) 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, 56389772 + ... + 56389887.

It is an arithmetic number, because the mean of its divisors is an integer number (1268771175).

Almost surely, 2^6541220222 is an apocalyptic number.

6541220222 is a deficient number, since it is larger than the sum of its proper divisors (3608949178).

6541220222 is a wasteful number, since it uses less digits than its factorization.

6541220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112779690.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 6541220222 is about 80877.8104426672. The cubic root of 6541220222 is about 1870.1922669231.

Adding to 6541220222 its reverse (2220221456), we get a palindrome (8761441678).

The spelling of 6541220222 in words is "six billion, five hundred forty-one million, two hundred twenty thousand, two hundred twenty-two".