221211310020211 has 16 divisors (see below), whose sum is σ = 270239055303168. Its totient is φ = 176942238580800.

The previous prime is 221211310020131. The next prime is 221211310020299. The reversal of 221211310020211 is 112020013112122.

221211310020211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221211310020211 - 2¹¹ = 221211310018163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221211310020511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16755887205 + ... + 16755900406.

It is an arithmetic number, because the mean of its divisors is an integer number (16889940956448).

Almost surely, 2^{221211310020211} is an apocalyptic number.

221211310020211 is a deficient number, since it is larger than the sum of its proper divisors (49027745282957).

221211310020211 is a wasteful number, since it uses less digits than its factorization.

221211310020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33511787682.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 221211310020211 its reverse (112020013112122), we get a palindrome (333231323132333).

The spelling of 221211310020211 in words is "two hundred twenty-one trillion, two hundred eleven billion, three hundred ten million, twenty thousand, two hundred eleven".