221022202322221 has 8 divisors (see below), whose sum is σ = 222978920462784. Its totient is φ = 219065497680960.

The previous prime is 221022202322189. The next prime is 221022202322261. The reversal of 221022202322221 is 122223202220122.

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

It is a cyclic number.

It is not a de Polignac number, because 221022202322221 - 2⁵ = 221022202322189 is a prime.

It is a super-2 number, since 2×221022202322221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022202322261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31064650 + ... + 37510756.

It is an arithmetic number, because the mean of its divisors is an integer number (27872365057848).

Almost surely, 2^{221022202322221} is an apocalyptic number.

It is an amenable number.

221022202322221 is a deficient number, since it is larger than the sum of its proper divisors (1956718140563).

221022202322221 is a wasteful number, since it uses less digits than its factorization.

221022202322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6749651.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 221022202322221 its reverse (122223202220122), we get a palindrome (343245404542343).

The spelling of 221022202322221 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred two million, three hundred twenty-two thousand, two hundred twenty-one".