20198201 has 2 divisors, whose sum is σ = 20198202. Its totient is φ = 20198200.

The previous prime is 20198183. The next prime is 20198219. The reversal of 20198201 is 10289102.

It is a balanced prime because it is at equal distance from previous prime (20198183) and next prime (20198219).

It can be written as a sum of positive squares in only one way, i.e., 17472400 + 2725801 = 4180^2 + 1651^2 .

It is a cyclic number.

It is not a de Polignac number, because 20198201 - 2¹⁸ = 19936057 is a prime.

It is not a weakly prime, because it can be changed into another prime (20198231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10099100 + 10099101.

It is an arithmetic number, because the mean of its divisors is an integer number (10099101).

Almost surely, 2^20198201 is an apocalyptic number.

It is an amenable number.

20198201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20198201 is an equidigital number, since it uses as much as digits as its factorization.

20198201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 20198201 is about 4494.2408702694. The cubic root of 20198201 is about 272.3354829981.

Subtracting from 20198201 its reverse (10289102), we obtain a palindrome (9909099).

The spelling of 20198201 in words is "twenty million, one hundred ninety-eight thousand, two hundred one".