201012211 has 4 divisors (see below), whose sum is σ = 201443112. Its totient is φ = 200581312.

The previous prime is 201012187. The next prime is 201012221. The reversal of 201012211 is 112210102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112210102 = 2 ⋅56105051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201012211 is a prime.

It is a super-2 number, since 2×201012211² = 80811817942217042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201012221) 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, 214750 + ... + 215683.

It is an arithmetic number, because the mean of its divisors is an integer number (50360778).

Almost surely, 2^201012211 is an apocalyptic number.

201012211 is a deficient number, since it is larger than the sum of its proper divisors (430901).

201012211 is an equidigital number, since it uses as much as digits as its factorization.

201012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430900.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 201012211 is about 14177.8775209832. The cubic root of 201012211 is about 585.7884622439.

Adding to 201012211 its reverse (112210102), we get a palindrome (313222313).

The spelling of 201012211 in words is "two hundred one million, twelve thousand, two hundred eleven".