210001210100205 has 8 divisors (see below), whose sum is σ = 336001936160352. Its totient is φ = 112000645386768.

The previous prime is 210001210100179. The next prime is 210001210100327. The reversal of 210001210100205 is 502001012100012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210001210100205 - 2¹¹ = 210001210098157 is a prime.

It is a super-2 number, since 2×210001210100205² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 14000080673347 = 210001210100205 / (2 + 1 + 0 + 0 + 0 + 1 + 2 + 1 + 0 + 1 + 0 + 0 + 2 + 0 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7000040336659 + ... + 7000040336688.

It is an arithmetic number, because the mean of its divisors is an integer number (42000242020044).

Almost surely, 2^{210001210100205} is an apocalyptic number.

It is an amenable number.

210001210100205 is a deficient number, since it is larger than the sum of its proper divisors (126000726060147).

210001210100205 is a wasteful number, since it uses less digits than its factorization.

210001210100205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14000080673355.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 210001210100205 its reverse (502001012100012), we get a palindrome (712002222200217).

The spelling of 210001210100205 in words is "two hundred ten trillion, one billion, two hundred ten million, one hundred thousand, two hundred five".