221321032123222 has 8 divisors (see below), whose sum is σ = 332069630326200. Its totient is φ = 110631155347824.

The previous prime is 221321032123183. The next prime is 221321032123229. The reversal of 221321032123222 is 222321230123122.

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

It is a super-2 number, since 2×221321032123222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221321032123229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14680347472 + ... + 14680362547.

It is an arithmetic number, because the mean of its divisors is an integer number (41508703790775).

Almost surely, 2^{221321032123222} is an apocalyptic number.

221321032123222 is a deficient number, since it is larger than the sum of its proper divisors (110748598202978).

221321032123222 is a wasteful number, since it uses less digits than its factorization.

221321032123222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29360713790.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 221321032123222 its reverse (222321230123122), we get a palindrome (443642262246344).

The spelling of 221321032123222 in words is "two hundred twenty-one trillion, three hundred twenty-one billion, thirty-two million, one hundred twenty-three thousand, two hundred twenty-two".