222221002102221 has 16 divisors (see below), whose sum is σ = 303186229632000. Its totient is φ = 144701577073200.

The previous prime is 222221002102171. The next prime is 222221002102223. The reversal of 222221002102221 is 122201200122222.

It is not a de Polignac number, because 222221002102221 - 2¹¹ = 222221002100173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222221002102223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39460030 + ... + 44738528.

It is an arithmetic number, because the mean of its divisors is an integer number (18949139352000).

Almost surely, 2^{222221002102221} is an apocalyptic number.

It is an amenable number.

222221002102221 is a deficient number, since it is larger than the sum of its proper divisors (80965227529779).

222221002102221 is a wasteful number, since it uses less digits than its factorization.

222221002102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5604896.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222221002102221 its reverse (122201200122222), we get a palindrome (344422202224443).

The spelling of 222221002102221 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two million, one hundred two thousand, two hundred twenty-one".