201019520227 has 4 divisors (see below), whose sum is σ = 201084725880. Its totient is φ = 200954314576.

The previous prime is 201019520189. The next prime is 201019520239. The reversal of 201019520227 is 722025910102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201019520227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201019520297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32598202 + ... + 32604367.

It is an arithmetic number, because the mean of its divisors is an integer number (50271181470).

Almost surely, 2^201019520227 is an apocalyptic number.

201019520227 is a deficient number, since it is larger than the sum of its proper divisors (65205653).

201019520227 is an equidigital number, since it uses as much as digits as its factorization.

201019520227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65205652.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 201019520227 in words is "two hundred one billion, nineteen million, five hundred twenty thousand, two hundred twenty-seven".