221412510524447 has 16 divisors (see below), whose sum is σ = 241591860900000. Its totient is φ = 201241654871040.

The previous prime is 221412510524389. The next prime is 221412510524453. The reversal of 221412510524447 is 744425015214122.

It is a cyclic number.

It is not a de Polignac number, because 221412510524447 - 2⁴⁰ = 220312998896671 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221412510524398 and 221412510524407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221412510524467) 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, 1034642123 + ... + 1034856099.

It is an arithmetic number, because the mean of its divisors is an integer number (15099491306250).

Almost surely, 2^{221412510524447} is an apocalyptic number.

221412510524447 is a deficient number, since it is larger than the sum of its proper divisors (20179350375553).

221412510524447 is a wasteful number, since it uses less digits than its factorization.

221412510524447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233386.

The product of its (nonzero) digits is 716800, while the sum is 44.

Adding to 221412510524447 its reverse (744425015214122), we get a palindrome (965837525738569).

The spelling of 221412510524447 in words is "two hundred twenty-one trillion, four hundred twelve billion, five hundred ten million, five hundred twenty-four thousand, four hundred forty-seven".