20219107 has 2 divisors, whose sum is σ = 20219108. Its totient is φ = 20219106.

The previous prime is 20219083. The next prime is 20219141. The reversal of 20219107 is 70191202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20219107 - 2¹⁵ = 20186339 is a prime.

It is equal to p_1283611 and since 20219107 and 1283611 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (20219197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10109553 + 10109554.

It is an arithmetic number, because the mean of its divisors is an integer number (10109554).

Almost surely, 2^20219107 is an apocalyptic number.

20219107 is a deficient number, since it is larger than the sum of its proper divisors (1).

20219107 is an equidigital number, since it uses as much as digits as its factorization.

20219107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 20219107 is about 4496.5661342851. The cubic root of 20219107 is about 272.4294102149.

The spelling of 20219107 in words is "twenty million, two hundred nineteen thousand, one hundred seven".