6441221442 has 32 divisors (see below), whose sum is σ = 13553334144. Its totient is φ = 2038089600.

The previous prime is 6441221441. The next prime is 6441221467. The reversal of 6441221442 is 2441221446.

It is not an unprimeable number, because it can be changed into a prime (6441221441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344734 + ... + 362937.

It is an arithmetic number, because the mean of its divisors is an integer number (423541692).

Almost surely, 2^6441221442 is an apocalyptic number.

6441221442 is an abundant number, since it is smaller than the sum of its proper divisors (7112112702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6441221442 is a wasteful number, since it uses less digits than its factorization.

6441221442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707754.

The product of its digits is 12288, while the sum is 30.

The square root of 6441221442 is about 80257.2204975976. The cubic root of 6441221442 is about 1860.6131098226.

Adding to 6441221442 its reverse (2441221446), we get a palindrome (8882442888).

The spelling of 6441221442 in words is "six billion, four hundred forty-one million, two hundred twenty-one thousand, four hundred forty-two".