221442435451234 has 16 divisors (see below), whose sum is σ = 333251507701728. Its totient is φ = 110358612296352.

The previous prime is 221442435451201. The next prime is 221442435451273. The reversal of 221442435451234 is 432154534244122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31905982 + ... + 38221414.

It is an arithmetic number, because the mean of its divisors is an integer number (20828219231358).

Almost surely, 2^{221442435451234} is an apocalyptic number.

221442435451234 is a deficient number, since it is larger than the sum of its proper divisors (111809072250494).

221442435451234 is a wasteful number, since it uses less digits than its factorization.

221442435451234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6372849.

The product of its digits is 3686400, while the sum is 46.

Adding to 221442435451234 its reverse (432154534244122), we get a palindrome (653596969695356).

The spelling of 221442435451234 in words is "two hundred twenty-one trillion, four hundred forty-two billion, four hundred thirty-five million, four hundred fifty-one thousand, two hundred thirty-four".