222210111000221 has 16 divisors (see below), whose sum is σ = 235788466475520. Its totient is φ = 208688195646720.

The previous prime is 222210111000193. The next prime is 222210111000223. The reversal of 222210111000221 is 122000111012222.

It is a cyclic number.

It is not a de Polignac number, because 222210111000221 - 2²² = 222210106805917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222210111000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222210111000223) 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, 80093111 + ... + 82821051.

It is an arithmetic number, because the mean of its divisors is an integer number (14736779154720).

Almost surely, 2^{222210111000221} is an apocalyptic number.

It is an amenable number.

222210111000221 is a deficient number, since it is larger than the sum of its proper divisors (13578355475299).

222210111000221 is a wasteful number, since it uses less digits than its factorization.

222210111000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738284.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222210111000221 its reverse (122000111012222), we get a palindrome (344210222012443).

The spelling of 222210111000221 in words is "two hundred twenty-two trillion, two hundred ten billion, one hundred eleven million, two hundred twenty-one", and thus it is an aban number.