211200210001 has 6 divisors (see below), whose sum is σ = 232145685506. Its totient is φ = 192000190800.

The previous prime is 211200209999. The next prime is 211200210049. The reversal of 211200210001 is 100012002112.

It can be written as a sum of positive squares in only one way, i.e., 196358879376 + 14841330625 = 443124^2 + 121825^2 .

It is not a de Polignac number, because 211200210001 - 2¹ = 211200209999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211200210001.

It is not an unprimeable number, because it can be changed into a prime (211200210071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 872728020 + ... + 872728261.

Almost surely, 2^211200210001 is an apocalyptic number.

It is an amenable number.

211200210001 is a deficient number, since it is larger than the sum of its proper divisors (20945475505).

211200210001 is a wasteful number, since it uses less digits than its factorization.

211200210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745456303 (or 1745456292 counting only the distinct ones).

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

Adding to 211200210001 its reverse (100012002112), we get a palindrome (311212212113).

It can be divided in two parts, 211200 and 210001, that added together give a square (421201 = 649²).

The spelling of 211200210001 in words is "two hundred eleven billion, two hundred million, two hundred ten thousand, one".