222320321140221 has 24 divisors (see below), whose sum is σ = 321515788313720. Its totient is φ = 148035235585536.

The previous prime is 222320321140153. The next prime is 222320321140271. The reversal of 222320321140221 is 122041123023222.

222320321140221 is a `hidden beast` number, since 2 + 2 + 2 + 3 + 20 + 3 + 211 + 402 + 21 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 22403655562500 + 199916665577721 = 4733250^2 + 14139189^2 .

It is not a de Polignac number, because 222320321140221 - 2¹³ = 222320321132029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222320321140271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60353991 + ... + 63931563.

Almost surely, 2^{222320321140221} is an apocalyptic number.

It is an amenable number.

222320321140221 is a deficient number, since it is larger than the sum of its proper divisors (99195467173499).

222320321140221 is a wasteful number, since it uses less digits than its factorization.

222320321140221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585885 (or 3585882 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 222320321140221 its reverse (122041123023222), we get a palindrome (344361444163443).

The spelling of 222320321140221 in words is "two hundred twenty-two trillion, three hundred twenty billion, three hundred twenty-one million, one hundred forty thousand, two hundred twenty-one".