221412433201 has 2 divisors, whose sum is σ = 221412433202. Its totient is φ = 221412433200.

The previous prime is 221412433171. The next prime is 221412433219. The reversal of 221412433201 is 102334214122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204720051600 + 16692381601 = 452460^2 + 129199^2 .

It is a cyclic number.

It is not a de Polignac number, because 221412433201 - 2¹¹ = 221412431153 is a prime.

It is not a weakly prime, because it can be changed into another prime (221410433201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110706216600 + 110706216601.

It is an arithmetic number, because the mean of its divisors is an integer number (110706216601).

Almost surely, 2^221412433201 is an apocalyptic number.

It is an amenable number.

221412433201 is a deficient number, since it is larger than the sum of its proper divisors (1).

221412433201 is an equidigital number, since it uses as much as digits as its factorization.

221412433201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 221412433201 its reverse (102334214122), we get a palindrome (323746647323).

The spelling of 221412433201 in words is "two hundred twenty-one billion, four hundred twelve million, four hundred thirty-three thousand, two hundred one".