210012001211 has 4 divisors (see below), whose sum is σ = 210045148152. Its totient is φ = 209978854272.

The previous prime is 210012001189. The next prime is 210012001229. The reversal of 210012001211 is 112100210012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210012001211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210012001192 and 210012001201.

It is not an unprimeable number, because it can be changed into a prime (210012009211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16563965 + ... + 16576638.

It is an arithmetic number, because the mean of its divisors is an integer number (52511287038).

Almost surely, 2^210012001211 is an apocalyptic number.

210012001211 is a deficient number, since it is larger than the sum of its proper divisors (33146941).

210012001211 is an equidigital number, since it uses as much as digits as its factorization.

210012001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33146940.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210012001211 its reverse (112100210012), we get a palindrome (322112211223).

The spelling of 210012001211 in words is "two hundred ten billion, twelve million, one thousand, two hundred eleven".