210122221022211 has 4 divisors (see below), whose sum is σ = 280162961362952. Its totient is φ = 140081480681472.

The previous prime is 210122221022209. The next prime is 210122221022261. The reversal of 210122221022211 is 112220122221012.

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

It is not a de Polignac number, because 210122221022211 - 2¹ = 210122221022209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210122221022261) 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, 35020370170366 + ... + 35020370170371.

It is an arithmetic number, because the mean of its divisors is an integer number (70040740340738).

Almost surely, 2^{210122221022211} is an apocalyptic number.

210122221022211 is a deficient number, since it is larger than the sum of its proper divisors (70040740340741).

210122221022211 is an equidigital number, since it uses as much as digits as its factorization.

210122221022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70040740340740.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 210122221022211 its reverse (112220122221012), we get a palindrome (322342343243223).

The spelling of 210122221022211 in words is "two hundred ten trillion, one hundred twenty-two billion, two hundred twenty-one million, twenty-two thousand, two hundred eleven".