221431300044004 has 6 divisors (see below), whose sum is σ = 387504775077014. Its totient is φ = 110715650022000.

The previous prime is 221431300043999. The next prime is 221431300044013. The reversal of 221431300044004 is 400440003134122.

It can be written as a sum of positive squares in only one way, i.e., 214191713384100 + 7239586659904 = 14635290^2 + 2690648^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27678912505497 + ... + 27678912505504.

Almost surely, 2^{221431300044004} is an apocalyptic number.

It is an amenable number.

221431300044004 is a deficient number, since it is larger than the sum of its proper divisors (166073475033010).

221431300044004 is a wasteful number, since it uses less digits than its factorization.

221431300044004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55357825011005 (or 55357825011003 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 221431300044004 its reverse (400440003134122), we get a palindrome (621871303178126).

The spelling of 221431300044004 in words is "two hundred twenty-one trillion, four hundred thirty-one billion, three hundred million, forty-four thousand, four".