211230201 has 64 divisors (see below), whose sum is σ = 368506880. Its totient is φ = 104509440.

The previous prime is 211230199. The next prime is 211230221. The reversal of 211230201 is 102032112.

It is not a de Polignac number, because 211230201 - 2¹ = 211230199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211230221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1000986 + ... + 1001196.

It is an arithmetic number, because the mean of its divisors is an integer number (5757920).

Almost surely, 2^211230201 is an apocalyptic number.

211230201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

211230201 is a deficient number, since it is larger than the sum of its proper divisors (157276679).

211230201 is a wasteful number, since it uses less digits than its factorization.

211230201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 211230201 is about 14533.7607314831. The cubic root of 211230201 is about 595.5506058239.

Adding to 211230201 its reverse (102032112), we get a palindrome (313262313).

The spelling of 211230201 in words is "two hundred eleven million, two hundred thirty thousand, two hundred one".