222021021122 has 8 divisors (see below), whose sum is σ = 352621621836. Its totient is φ = 104480480512.

The previous prime is 222021021107. The next prime is 222021021181. The reversal of 222021021122 is 221120120222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 206351239081 + 15669782041 = 454259^2 + 125179^2 .

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

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

It is a self number, because there is not a number n which added to its sum of digits gives 222021021122.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3265014983 + ... + 3265015050.

Almost surely, 2^222021021122 is an apocalyptic number.

222021021122 is a deficient number, since it is larger than the sum of its proper divisors (130600600714).

222021021122 is a wasteful number, since it uses less digits than its factorization.

222021021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6530030052.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222021021122 its reverse (221120120222), we get a palindrome (443141141344).

The spelling of 222021021122 in words is "two hundred twenty-two billion, twenty-one million, twenty-one thousand, one hundred twenty-two".