211102010100221 has 16 divisors (see below), whose sum is σ = 233239157078400. Its totient is φ = 190044878166528.

The previous prime is 211102010100193. The next prime is 211102010100227. The reversal of 211102010100221 is 122001010201112.

It is a de Polignac number, because none of the positive numbers 2^k-211102010100221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211102010100196 and 211102010100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211102010100227) 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, 87083945 + ... + 89475233.

It is an arithmetic number, because the mean of its divisors is an integer number (14577447317400).

Almost surely, 2^{211102010100221} is an apocalyptic number.

It is an amenable number.

211102010100221 is a deficient number, since it is larger than the sum of its proper divisors (22137146978179).

211102010100221 is a wasteful number, since it uses less digits than its factorization.

211102010100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617108.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211102010100221 its reverse (122001010201112), we get a palindrome (333103020301333).

The spelling of 211102010100221 in words is "two hundred eleven trillion, one hundred two billion, ten million, one hundred thousand, two hundred twenty-one".