221244410442 has 48 divisors (see below), whose sum is σ = 486437817600. Its totient is φ = 67034689920.

The previous prime is 221244410441. The next prime is 221244410449. The reversal of 221244410442 is 244014442122.

It is not an unprimeable number, because it can be changed into a prime (221244410441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6989383 + ... + 7020965.

It is an arithmetic number, because the mean of its divisors is an integer number (10134121200).

Almost surely, 2^221244410442 is an apocalyptic number.

221244410442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221244410442 is an abundant number, since it is smaller than the sum of its proper divisors (265193407158).

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

221244410442 is a wasteful number, since it uses less digits than its factorization.

221244410442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41259 (or 41248 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 221244410442 its reverse (244014442122), we get a palindrome (465258852564).

It can be divided in two parts, 2212444 and 10442, that added together give a triangular number (2222886 = T₂₁₀₈).

The spelling of 221244410442 in words is "two hundred twenty-one billion, two hundred forty-four million, four hundred ten thousand, four hundred forty-two".