221013283 has 2 divisors, whose sum is σ = 221013284. Its totient is φ = 221013282.

The previous prime is 221013271. The next prime is 221013319. The reversal of 221013283 is 382310122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221013283 - 2⁵ = 221013251 is a prime.

It is not a weakly prime, because it can be changed into another prime (221013203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110506641 + 110506642.

It is an arithmetic number, because the mean of its divisors is an integer number (110506642).

Almost surely, 2^221013283 is an apocalyptic number.

221013283 is a deficient number, since it is larger than the sum of its proper divisors (1).

221013283 is an equidigital number, since it uses as much as digits as its factorization.

221013283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 221013283 is about 14866.5154962419. The cubic root of 221013283 is about 604.6064722196.

The spelling of 221013283 in words is "two hundred twenty-one million, thirteen thousand, two hundred eighty-three".