221434133301244 has 12 divisors (see below), whose sum is σ = 389131112916000. Its totient is φ = 110253815325248.

The previous prime is 221434133301239. The next prime is 221434133301383. The reversal of 221434133301244 is 442103331434122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115812830269 + ... + 115812832180.

It is an arithmetic number, because the mean of its divisors is an integer number (32427592743000).

Almost surely, 2^{221434133301244} is an apocalyptic number.

It is an amenable number.

221434133301244 is a deficient number, since it is larger than the sum of its proper divisors (167696979614756).

221434133301244 is a wasteful number, since it uses less digits than its factorization.

221434133301244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231625662692 (or 231625662690 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 221434133301244 its reverse (442103331434122), we get a palindrome (663537464735366).

The spelling of 221434133301244 in words is "two hundred twenty-one trillion, four hundred thirty-four billion, one hundred thirty-three million, three hundred one thousand, two hundred forty-four".