20010211 has 8 divisors (see below), whose sum is σ = 22683920. Its totient is φ = 17498592.

The previous prime is 20010209. The next prime is 20010217. The reversal of 20010211 is 11201002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20010211 - 2¹ = 20010209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010194 and 20010203.

It is not an unprimeable number, because it can be changed into a prime (20010217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40260 + ... + 40753.

It is an arithmetic number, because the mean of its divisors is an integer number (2835490).

Almost surely, 2^20010211 is an apocalyptic number.

20010211 is a deficient number, since it is larger than the sum of its proper divisors (2673709).

20010211 is a wasteful number, since it uses less digits than its factorization.

20010211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81045.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 20010211 is about 4473.2774338286. The cubic root of 20010211 is about 271.4879486639.

Adding to 20010211 its reverse (11201002), we get a palindrome (31211213).

The spelling of 20010211 in words is "twenty million, ten thousand, two hundred eleven".