201230442211 has 4 divisors (see below), whose sum is σ = 201587868072. Its totient is φ = 200873016352.

The previous prime is 201230442167. The next prime is 201230442221. The reversal of 201230442211 is 112244032102.

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

It is a cyclic number.

It is not a de Polignac number, because 201230442211 - 2²³ = 201222053603 is a prime.

It is a super-2 number, since 2×201230442211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201230442221) 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, 178712086 + ... + 178713211.

It is an arithmetic number, because the mean of its divisors is an integer number (50396967018).

Almost surely, 2^201230442211 is an apocalyptic number.

201230442211 is a deficient number, since it is larger than the sum of its proper divisors (357425861).

201230442211 is an equidigital number, since it uses as much as digits as its factorization.

201230442211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357425860.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 201230442211 its reverse (112244032102), we get a palindrome (313474474313).

The spelling of 201230442211 in words is "two hundred one billion, two hundred thirty million, four hundred forty-two thousand, two hundred eleven".