210220212211 has 4 divisors (see below), whose sum is σ = 210937687632. Its totient is φ = 209502736792.

The previous prime is 210220212133. The next prime is 210220212227. The reversal of 210220212211 is 112212022012.

It is a happy number.

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 210220212211 - 2²³ = 210211823603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210220212011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358737271 + ... + 358737856.

It is an arithmetic number, because the mean of its divisors is an integer number (52734421908).

Almost surely, 2^210220212211 is an apocalyptic number.

210220212211 is a deficient number, since it is larger than the sum of its proper divisors (717475421).

210220212211 is an equidigital number, since it uses as much as digits as its factorization.

210220212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717475420.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210220212211 its reverse (112212022012), we get a palindrome (322432234223).

The spelling of 210220212211 in words is "two hundred ten billion, two hundred twenty million, two hundred twelve thousand, two hundred eleven".