210211020011 has 4 divisors (see below), whose sum is σ = 210273604800. Its totient is φ = 210148435224.

The previous prime is 210211020007. The next prime is 210211020013. The reversal of 210211020011 is 110020112012.

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

It is a cyclic number.

It is not a de Polignac number, because 210211020011 - 2² = 210211020007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210211019974 and 210211020001.

It is not an unprimeable number, because it can be changed into a prime (210211020013) 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, 31287356 + ... + 31294073.

It is an arithmetic number, because the mean of its divisors is an integer number (52568401200).

Almost surely, 2^210211020011 is an apocalyptic number.

210211020011 is a deficient number, since it is larger than the sum of its proper divisors (62584789).

210211020011 is an equidigital number, since it uses as much as digits as its factorization.

210211020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62584788.

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

Adding to 210211020011 its reverse (110020112012), we get a palindrome (320231132023).

The spelling of 210211020011 in words is "two hundred ten billion, two hundred eleven million, twenty thousand, eleven".