210002111205 has 128 divisors (see below), whose sum is σ = 384062860800. Its totient is φ = 97337769984.

The previous prime is 210002111201. The next prime is 210002111227. The reversal of 210002111205 is 502111200012.

It is not a de Polignac number, because 210002111205 - 2² = 210002111201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210002111201) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 40312641 + ... + 40317849.

It is an arithmetic number, because the mean of its divisors is an integer number (3000491100).

Almost surely, 2^210002111205 is an apocalyptic number.

It is an amenable number.

210002111205 is a deficient number, since it is larger than the sum of its proper divisors (174060749595).

210002111205 is a wasteful number, since it uses less digits than its factorization.

210002111205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5463.

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

Adding to 210002111205 its reverse (502111200012), we get a palindrome (712113311217).

The spelling of 210002111205 in words is "two hundred ten billion, two million, one hundred eleven thousand, two hundred five".