221222010422 has 8 divisors (see below), whose sum is σ = 379237732176. Its totient is φ = 94809433032.

The previous prime is 221222010409. The next prime is 221222010437. The reversal of 221222010422 is 224010222122.

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

It is a junction number, because it is equal to n+sod(n) for n = 221222010394 and 221222010403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7900786073 + ... + 7900786100.

It is an arithmetic number, because the mean of its divisors is an integer number (47404716522).

Almost surely, 2^221222010422 is an apocalyptic number.

221222010422 is a deficient number, since it is larger than the sum of its proper divisors (158015721754).

221222010422 is a wasteful number, since it uses less digits than its factorization.

221222010422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15801572182.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 221222010422 its reverse (224010222122), we get a palindrome (445232232544).

The spelling of 221222010422 in words is "two hundred twenty-one billion, two hundred twenty-two million, ten thousand, four hundred twenty-two".