20055198227 has 2 divisors, whose sum is σ = 20055198228. Its totient is φ = 20055198226.

The previous prime is 20055198221. The next prime is 20055198259. The reversal of 20055198227 is 72289155002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20055198227 - 2²⁰ = 20054149651 is a prime.

It is not a weakly prime, because it can be changed into another prime (20055198221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10027599113 + 10027599114.

It is an arithmetic number, because the mean of its divisors is an integer number (10027599114).

Almost surely, 2^20055198227 is an apocalyptic number.

20055198227 is a deficient number, since it is larger than the sum of its proper divisors (1).

20055198227 is an equidigital number, since it uses as much as digits as its factorization.

20055198227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 20055198227 in words is "twenty billion, fifty-five million, one hundred ninety-eight thousand, two hundred twenty-seven".