641026222 has 8 divisors (see below), whose sum is σ = 962835696. Its totient is φ = 320080992.

The previous prime is 641026207. The next prime is 641026223. The reversal of 641026222 is 222620146.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641026223) 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, 214203 + ... + 217174.

It is an arithmetic number, because the mean of its divisors is an integer number (120354462).

Almost surely, 2^641026222 is an apocalyptic number.

641026222 is a deficient number, since it is larger than the sum of its proper divisors (321809474).

641026222 is a wasteful number, since it uses less digits than its factorization.

641026222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432122.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 641026222 is about 25318.4956504134. The cubic root of 641026222 is about 862.2342400977.

Adding to 641026222 its reverse (222620146), we get a palindrome (863646368).

The spelling of 641026222 in words is "six hundred forty-one million, twenty-six thousand, two hundred twenty-two".