211300101 has 12 divisors (see below), whose sum is σ = 312655980. Its totient is φ = 137430720.

The previous prime is 211300099. The next prime is 211300127. The reversal of 211300101 is 101003112.

It can be written as a sum of positive squares in 2 ways, for example, as 70308225 + 140991876 = 8385^2 + 11874^2 .

It is not a de Polignac number, because 211300101 - 2¹ = 211300099 is a prime.

It is a super-2 number, since 2×211300101² = 89295465365220402, which contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211300601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 285946 + ... + 286683.

It is an arithmetic number, because the mean of its divisors is an integer number (26054665).

Almost surely, 2^211300101 is an apocalyptic number.

It is an amenable number.

211300101 is a deficient number, since it is larger than the sum of its proper divisors (101355879).

211300101 is a wasteful number, since it uses less digits than its factorization.

211300101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572676 (or 572673 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 211300101 is about 14536.1652783669. The cubic root of 211300101 is about 595.6162915009.

Adding to 211300101 its reverse (101003112), we get a palindrome (312303213).

The spelling of 211300101 in words is "two hundred eleven million, three hundred thousand, one hundred one".