19220099 has 2 divisors, whose sum is σ = 19220100. Its totient is φ = 19220098.

The previous prime is 19220087. The next prime is 19220129. The reversal of 19220099 is 99002291.

It is a weak prime.

It is an emirp because it is prime and its reverse (99002291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19220099 - 2⁴ = 19220083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19220009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9610049 + 9610050.

It is an arithmetic number, because the mean of its divisors is an integer number (9610050).

Almost surely, 2^19220099 is an apocalyptic number.

19220099 is a deficient number, since it is larger than the sum of its proper divisors (1).

19220099 is an equidigital number, since it uses as much as digits as its factorization.

19220099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 19220099 is about 4384.0733342407. The cubic root of 19220099 is about 267.8665844816.

The spelling of 19220099 in words is "nineteen million, two hundred twenty thousand, ninety-nine".