16220371 has 2 divisors, whose sum is σ = 16220372. Its totient is φ = 16220370.

The previous prime is 16220287. The next prime is 16220383. The reversal of 16220371 is 17302261.

It is a strong prime.

It is an emirp because it is prime and its reverse (17302261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16220371 - 2²³ = 7831763 is a prime.

It is not a weakly prime, because it can be changed into another prime (16220671) 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, 8110185 + 8110186.

It is an arithmetic number, because the mean of its divisors is an integer number (8110186).

Almost surely, 2^16220371 is an apocalyptic number.

16220371 is a deficient number, since it is larger than the sum of its proper divisors (1).

16220371 is an equidigital number, since it uses as much as digits as its factorization.

16220371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 16220371 is about 4027.4521722796. The cubic root of 16220371 is about 253.1358142207.

The spelling of 16220371 in words is "sixteen million, two hundred twenty thousand, three hundred seventy-one".