221411706474443 has 2 divisors, whose sum is σ = 221411706474444. Its totient is φ = 221411706474442.

The previous prime is 221411706474407. The next prime is 221411706474461. The reversal of 221411706474443 is 344474607114122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221411706474443 is a prime.

It is a super-2 number, since 2×221411706474443² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221411706474391 and 221411706474400.

It is not a weakly prime, because it can be changed into another prime (221411706474143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110705853237221 + 110705853237222.

It is an arithmetic number, because the mean of its divisors is an integer number (110705853237222).

Almost surely, 2^{221411706474443} is an apocalyptic number.

221411706474443 is a deficient number, since it is larger than the sum of its proper divisors (1).

221411706474443 is an equidigital number, since it uses as much as digits as its factorization.

221411706474443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3612672, while the sum is 50.

The spelling of 221411706474443 in words is "two hundred twenty-one trillion, four hundred eleven billion, seven hundred six million, four hundred seventy-four thousand, four hundred forty-three".