211020201 has 32 divisors (see below), whose sum is σ = 378305280. Its totient is φ = 113488128.

The previous prime is 211020163. The next prime is 211020233. The reversal of 211020201 is 102020112.

It is not a de Polignac number, because 211020201 - 2²¹ = 208923049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (211020241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29626 + ... + 36051.

It is an arithmetic number, because the mean of its divisors is an integer number (11822040).

Almost surely, 2^211020201 is an apocalyptic number.

211020201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

211020201 is a deficient number, since it is larger than the sum of its proper divisors (167285079).

211020201 is a wasteful number, since it uses less digits than its factorization.

211020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65710 (or 65704 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 211020201 is about 14526.5343767879. The cubic root of 211020201 is about 595.3531796741.

Adding to 211020201 its reverse (102020112), we get a palindrome (313040313).

The spelling of 211020201 in words is "two hundred eleven million, twenty thousand, two hundred one".