221416404359 has 2 divisors, whose sum is σ = 221416404360. Its totient is φ = 221416404358.

The previous prime is 221416404323. The next prime is 221416404379. The reversal of 221416404359 is 953404614122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221416404359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221416404379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110708202179 + 110708202180.

It is an arithmetic number, because the mean of its divisors is an integer number (110708202180).

Almost surely, 2^221416404359 is an apocalyptic number.

221416404359 is a deficient number, since it is larger than the sum of its proper divisors (1).

221416404359 is an equidigital number, since it uses as much as digits as its factorization.

221416404359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 221416404359 in words is "two hundred twenty-one billion, four hundred sixteen million, four hundred four thousand, three hundred fifty-nine".