222012110221 has 8 divisors (see below), whose sum is σ = 242228253600. Its totient is φ = 201801504240.

The previous prime is 222012110213. The next prime is 222012110231. The reversal of 222012110221 is 122011210222.

It is a happy number.

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 222012110221 - 2³ = 222012110213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222012110195 and 222012110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012110231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300291 + ... + 1461088.

It is an arithmetic number, because the mean of its divisors is an integer number (30278531700).

Almost surely, 2^222012110221 is an apocalyptic number.

It is an amenable number.

222012110221 is a deficient number, since it is larger than the sum of its proper divisors (20216143379).

222012110221 is a wasteful number, since it uses less digits than its factorization.

222012110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768699.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222012110221 its reverse (122011210222), we get a palindrome (344023320443).

It can be divided in two parts, 222012 and 110221, that added together give a palindrome (332233).

The spelling of 222012110221 in words is "two hundred twenty-two billion, twelve million, one hundred ten thousand, two hundred twenty-one".