221935811341 has 2 divisors, whose sum is σ = 221935811342. Its totient is φ = 221935811340.

The previous prime is 221935811263. The next prime is 221935811353. The reversal of 221935811341 is 143118539122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215269088841 + 6666722500 = 463971^2 + 81650^2 .

It is a cyclic number.

It is not a de Polignac number, because 221935811341 - 2⁹ = 221935810829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221935811294 and 221935811303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221935811641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110967905670 + 110967905671.

It is an arithmetic number, because the mean of its divisors is an integer number (110967905671).

Almost surely, 2^221935811341 is an apocalyptic number.

It is an amenable number.

221935811341 is a deficient number, since it is larger than the sum of its proper divisors (1).

221935811341 is an equidigital number, since it uses as much as digits as its factorization.

221935811341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The spelling of 221935811341 in words is "two hundred twenty-one billion, nine hundred thirty-five million, eight hundred eleven thousand, three hundred forty-one".