221210034211 has 8 divisors (see below), whose sum is σ = 223262023680. Its totient is φ = 219162891528.

The previous prime is 221210034191. The next prime is 221210034217. The reversal of 221210034211 is 112430012122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221210034211 - 2⁹ = 221210033699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221210034217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119961 + ... + 1302586.

It is an arithmetic number, because the mean of its divisors is an integer number (27907752960).

Almost surely, 2^221210034211 is an apocalyptic number.

221210034211 is a deficient number, since it is larger than the sum of its proper divisors (2051989469).

221210034211 is a wasteful number, since it uses less digits than its factorization.

221210034211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423393.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 221210034211 its reverse (112430012122), we get a palindrome (333640046333).

The spelling of 221210034211 in words is "two hundred twenty-one billion, two hundred ten million, thirty-four thousand, two hundred eleven".