222200011221 has 8 divisors (see below), whose sum is σ = 296308955040. Its totient is φ = 148112204112.

The previous prime is 222200011213. The next prime is 222200011223. The reversal of 222200011221 is 122110002222.

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

It is not a de Polignac number, because 222200011221 - 2³ = 222200011213 is a prime.

It is a super-2 number, since 2×222200011221² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222200011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222200011223) 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, 5259631 + ... + 5301708.

It is an arithmetic number, because the mean of its divisors is an integer number (37038619380).

Almost surely, 2^222200011221 is an apocalyptic number.

It is an amenable number.

222200011221 is a deficient number, since it is larger than the sum of its proper divisors (74108943819).

222200011221 is a wasteful number, since it uses less digits than its factorization.

222200011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10568355.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222200011221 its reverse (122110002222), we get a palindrome (344310013443).

The spelling of 222200011221 in words is "two hundred twenty-two billion, two hundred million, eleven thousand, two hundred twenty-one".