221222043311 has 2 divisors, whose sum is σ = 221222043312. Its totient is φ = 221222043310.

The previous prime is 221222043293. The next prime is 221222043347. The reversal of 221222043311 is 113340222122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221222043311 - 2²² = 221217849007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221222043011) 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, 110611021655 + 110611021656.

It is an arithmetic number, because the mean of its divisors is an integer number (110611021656).

Almost surely, 2^221222043311 is an apocalyptic number.

221222043311 is a deficient number, since it is larger than the sum of its proper divisors (1).

221222043311 is an equidigital number, since it uses as much as digits as its factorization.

221222043311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 221222043311 its reverse (113340222122), we get a palindrome (334562265433).

The spelling of 221222043311 in words is "two hundred twenty-one billion, two hundred twenty-two million, forty-three thousand, three hundred eleven".