210210110001 has 6 divisors (see below), whose sum is σ = 303636825570. Its totient is φ = 140140073328.

The previous prime is 210210109937. The next prime is 210210110009. The reversal of 210210110001 is 100011012012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 111022906401 + 99187203600 = 333201^2 + 314940^2 .

It is not a de Polignac number, because 210210110001 - 2⁶ = 210210109937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 23356678889 = 210210110001 / (2 + 1 + 0 + 2 + 1 + 0 + 1 + 1 + 0 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (210210110009) 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, 11678339436 + ... + 11678339453.

It is an arithmetic number, because the mean of its divisors is an integer number (50606137595).

Almost surely, 2^210210110001 is an apocalyptic number.

It is an amenable number.

210210110001 is a deficient number, since it is larger than the sum of its proper divisors (93426715569).

210210110001 is a wasteful number, since it uses less digits than its factorization.

210210110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23356678895 (or 23356678892 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 210210110001 its reverse (100011012012), we get a palindrome (310221122013).

The spelling of 210210110001 in words is "two hundred ten billion, two hundred ten million, one hundred ten thousand, one".