221050050213 has 8 divisors (see below), whose sum is σ = 294741663328. Its totient is φ = 147362568624.

The previous prime is 221050050157. The next prime is 221050050229. The reversal of 221050050213 is 312050050122.

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

It is not a de Polignac number, because 221050050213 - 2¹⁰ = 221050049189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 221050050213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221050050253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905806 + ... + 1123647.

It is an arithmetic number, because the mean of its divisors is an integer number (36842707916).

Almost surely, 2^221050050213 is an apocalyptic number.

It is an amenable number.

221050050213 is a deficient number, since it is larger than the sum of its proper divisors (73691613115).

221050050213 is a wasteful number, since it uses less digits than its factorization.

221050050213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065763.

The product of its (nonzero) digits is 600, while the sum is 21.

Subtracting 221050050213 from its reverse (312050050122), we obtain a palindrome (90999999909).

The spelling of 221050050213 in words is "two hundred twenty-one billion, fifty million, fifty thousand, two hundred thirteen".