221346383 has 2 divisors, whose sum is σ = 221346384. Its totient is φ = 221346382.

The previous prime is 221346361. The next prime is 221346397. The reversal of 221346383 is 383643122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221346383 - 2⁸ = 221346127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221346313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110673191 + 110673192.

It is an arithmetic number, because the mean of its divisors is an integer number (110673192).

Almost surely, 2^221346383 is an apocalyptic number.

221346383 is a deficient number, since it is larger than the sum of its proper divisors (1).

221346383 is an equidigital number, since it uses as much as digits as its factorization.

221346383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 32.

The square root of 221346383 is about 14877.7143069761. The cubic root of 221346383 is about 604.9100638117.

The spelling of 221346383 in words is "two hundred twenty-one million, three hundred forty-six thousand, three hundred eighty-three".