2212202322221 has 8 divisors (see below), whose sum is σ = 2271689570304. Its totient is φ = 2153372392080.

The previous prime is 2212202322217. The next prime is 2212202322227. The reversal of 2212202322221 is 1222232022122.

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 2212202322221 - 2² = 2212202322217 is a prime.

It is a super-2 number, since 2×2212202322221² (a number of 25 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 (2212202322227) 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, 164322665 + ... + 164336126.

It is an arithmetic number, because the mean of its divisors is an integer number (283961196288).

Almost surely, 2^{2212202322221} is an apocalyptic number.

It is an amenable number.

2212202322221 is a deficient number, since it is larger than the sum of its proper divisors (59487248083).

2212202322221 is a wasteful number, since it uses less digits than its factorization.

2212202322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328658971.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 2212202322221 its reverse (1222232022122), we get a palindrome (3434434344343).

The spelling of 2212202322221 in words is "two trillion, two hundred twelve billion, two hundred two million, three hundred twenty-two thousand, two hundred twenty-one".