1222021222222 has 8 divisors (see below), whose sum is σ = 1851180663672. Its totient is φ = 604961001000.

The previous prime is 1222021222211. The next prime is 1222021222223. The reversal of 1222021222222 is 2222221202221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1222021222193 and 1222021222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222021222223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3024804804 + ... + 3024805207.

It is an arithmetic number, because the mean of its divisors is an integer number (231397582959).

Almost surely, 2^{1222021222222} is an apocalyptic number.

1222021222222 is a deficient number, since it is larger than the sum of its proper divisors (629159441450).

1222021222222 is a wasteful number, since it uses less digits than its factorization.

1222021222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6049610114.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 1222021222222 its reverse (2222221202221), we get a palindrome (3444242424443).

The spelling of 1222021222222 in words is "one trillion, two hundred twenty-two billion, twenty-one million, two hundred twenty-two thousand, two hundred twenty-two".