221442133411 has 2 divisors, whose sum is σ = 221442133412. Its totient is φ = 221442133410.

The previous prime is 221442133403. The next prime is 221442133421. The reversal of 221442133411 is 114331244122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221442133411 - 2³ = 221442133403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221442133411.

It is not a weakly prime, because it can be changed into another prime (221442133421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110721066705 + 110721066706.

It is an arithmetic number, because the mean of its divisors is an integer number (110721066706).

Almost surely, 2^221442133411 is an apocalyptic number.

221442133411 is a deficient number, since it is larger than the sum of its proper divisors (1).

221442133411 is an equidigital number, since it uses as much as digits as its factorization.

221442133411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 28.

Adding to 221442133411 its reverse (114331244122), we get a palindrome (335773377533).

The spelling of 221442133411 in words is "two hundred twenty-one billion, four hundred forty-two million, one hundred thirty-three thousand, four hundred eleven".