221210214243222 has 128 divisors (see below), whose sum is σ = 464971697418240. Its totient is φ = 70091103513600.

The previous prime is 221210214243181. The next prime is 221210214243229. The reversal of 221210214243222 is 222342412012122.

It is a self number, because there is not a number n which added to its sum of digits gives 221210214243222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221210214243229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2935069383 + ... + 2935144749.

It is an arithmetic number, because the mean of its divisors is an integer number (3632591386080).

Almost surely, 2^{221210214243222} is an apocalyptic number.

221210214243222 is an abundant number, since it is smaller than the sum of its proper divisors (243761483175018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221210214243222 is a wasteful number, since it uses less digits than its factorization.

221210214243222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77246.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 221210214243222 its reverse (222342412012122), we get a palindrome (443552626255344).

The spelling of 221210214243222 in words is "two hundred twenty-one trillion, two hundred ten billion, two hundred fourteen million, two hundred forty-three thousand, two hundred twenty-two".