221323430424222 has 64 divisors (see below), whose sum is σ = 562093075737600. Its totient is φ = 63235060650720.

The previous prime is 221323430424197. The next prime is 221323430424223. The reversal of 221323430424222 is 222424034323122.

221323430424222 is a `hidden beast` number, since 2 + 2 + 1 + 3 + 2 + 3 + 4 + 3 + 0 + 424 + 222 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221323430424223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145541304 + ... + 147054132.

It is an arithmetic number, because the mean of its divisors is an integer number (8782704308400).

Almost surely, 2^{221323430424222} is an apocalyptic number.

221323430424222 is an abundant number, since it is smaller than the sum of its proper divisors (340769645313378).

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

221323430424222 is a wasteful number, since it uses less digits than its factorization.

221323430424222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899878 (or 1899872 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 221323430424222 its reverse (222424034323122), we get a palindrome (443747464747344).

The spelling of 221323430424222 in words is "two hundred twenty-one trillion, three hundred twenty-three billion, four hundred thirty million, four hundred twenty-four thousand, two hundred twenty-two".