210211210001 has 4 divisors (see below), whose sum is σ = 226381303092. Its totient is φ = 194041116912.

The previous prime is 210211209973. The next prime is 210211210019. The reversal of 210211210001 is 100012112012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121678182976 + 88533027025 = 348824^2 + 297545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210211210001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (210211210051) 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, 8085046526 + ... + 8085046551.

It is an arithmetic number, because the mean of its divisors is an integer number (56595325773).

Almost surely, 2^210211210001 is an apocalyptic number.

It is an amenable number.

210211210001 is a deficient number, since it is larger than the sum of its proper divisors (16170093091).

210211210001 is a wasteful number, since it uses less digits than its factorization.

210211210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16170093090.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210211210001 its reverse (100012112012), we get a palindrome (310223322013).

The spelling of 210211210001 in words is "two hundred ten billion, two hundred eleven million, two hundred ten thousand, one".