210000210111211 has 16 divisors (see below), whose sum is σ = 233953598309760. Its totient is φ = 187161103301760.

The previous prime is 210000210111193. The next prime is 210000210111233. The reversal of 210000210111211 is 112111012000012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 210000210111211 - 2¹¹ = 210000210109163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210000210111191 and 210000210111200.

It is not an unprimeable number, because it can be changed into a prime (210000210181211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85901566 + ... + 88312396.

It is an arithmetic number, because the mean of its divisors is an integer number (14622099894360).

Almost surely, 2^{210000210111211} is an apocalyptic number.

210000210111211 is a deficient number, since it is larger than the sum of its proper divisors (23953388198549).

210000210111211 is a wasteful number, since it uses less digits than its factorization.

210000210111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641926.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 210000210111211 its reverse (112111012000012), we get a palindrome (322111222111223).

The spelling of 210000210111211 in words is "two hundred ten trillion, two hundred ten million, one hundred eleven thousand, two hundred eleven".