210011222011 has 4 divisors (see below), whose sum is σ = 213973697952. Its totient is φ = 206048746072.

The previous prime is 210011221997. The next prime is 210011222041. The reversal of 210011222011 is 110222110012.

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 210011222011 - 2²¹ = 210009124859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210011221982 and 210011222000.

It is not an unprimeable number, because it can be changed into a prime (210011222041) 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, 1981237891 + ... + 1981237996.

It is an arithmetic number, because the mean of its divisors is an integer number (53493424488).

Almost surely, 2^210011222011 is an apocalyptic number.

210011222011 is a deficient number, since it is larger than the sum of its proper divisors (3962475941).

210011222011 is an equidigital number, since it uses as much as digits as its factorization.

210011222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3962475940.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210011222011 its reverse (110222110012), we get a palindrome (320233332023).

The spelling of 210011222011 in words is "two hundred ten billion, eleven million, two hundred twenty-two thousand, eleven".