210012111205 has 16 divisors (see below), whose sum is σ = 271416337920. Its totient is φ = 155076683328.

The previous prime is 210012111203. The next prime is 210012111229. The reversal of 210012111205 is 502111210012.

It is a cyclic number.

It is not a de Polignac number, because 210012111205 - 2¹ = 210012111203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012111203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1130434 + ... + 1303036.

It is an arithmetic number, because the mean of its divisors is an integer number (16963521120).

Almost surely, 2^210012111205 is an apocalyptic number.

It is an amenable number.

210012111205 is a deficient number, since it is larger than the sum of its proper divisors (61404226715).

210012111205 is a wasteful number, since it uses less digits than its factorization.

210012111205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191340.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 210012111205 its reverse (502111210012), we get a palindrome (712123321217).

The spelling of 210012111205 in words is "two hundred ten billion, twelve million, one hundred eleven thousand, two hundred five".